49279 has 2 divisors, whose sum is σ = 49280. Its totient is φ = 49278.
The previous prime is 49277. The next prime is 49297. The reversal of 49279 is 97294.
Together with next prime (49297) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 49279 - 21 = 49277 is a prime.
Together with 49277, it forms a pair of twin primes.
It is a Chen prime.
49279 is a lucky number.
It is a zygodrome in base 2.
It is a self number, because there is not a number n which added to its sum of digits gives 49279.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (49277) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24639 + 24640.
It is an arithmetic number, because the mean of its divisors is an integer number (24640).
249279 is an apocalyptic number.
49279 is a deficient number, since it is larger than the sum of its proper divisors (1).
49279 is an equidigital number, since it uses as much as digits as its factorization.
49279 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4536, while the sum is 31.
The square root of 49279 is about 221.9887384531. The cubic root of 49279 is about 36.6623778271.
The spelling of 49279 in words is "forty-nine thousand, two hundred seventy-nine".
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