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670279 is a prime number
BaseRepresentation
bin10100011101001000111
31021001110011
42203221013
5132422104
622211051
75461111
oct2435107
91231404
10670279
11418655
12283a87
131a611c
141363b1
15d3904
hexa3a47

670279 has 2 divisors, whose sum is σ = 670280. Its totient is φ = 670278.

The previous prime is 670261. The next prime is 670297. The reversal of 670279 is 972076.

It is a happy number.

670279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (670297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (670261) and next prime (670297).

It is a cyclic number.

It is not a de Polignac number, because 670279 - 217 = 539207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335139 + 335140.

It is an arithmetic number, because the mean of its divisors is an integer number (335140).

2670279 is an apocalyptic number.

670279 is a deficient number, since it is larger than the sum of its proper divisors (1).

670279 is an equidigital number, since it uses as much as digits as its factorization.

670279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 670279 is about 818.7056858237. The cubic root of 670279 is about 87.5155455373.

It can be divided in two parts, 670 and 279, that added together give a palindrome (949).

The spelling of 670279 in words is "six hundred seventy thousand, two hundred seventy-nine".