870479 has 2 divisors, whose sum is σ = 870480. Its totient is φ = 870478.

The previous prime is 870461. The next prime is 870491. The reversal of 870479 is 974078.

870479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870479 - 2⁸ = 870223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435239 + 435240.

It is an arithmetic number, because the mean of its divisors is an integer number (435240).

2⁸⁷⁰⁴⁷⁹ is an apocalyptic number.

870479 is a deficient number, since it is larger than the sum of its proper divisors (1).

870479 is an equidigital number, since it uses as much as digits as its factorization.

870479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 870479 is about 932.9946409278. The cubic root of 870479 is about 95.4815439057.

The spelling of 870479 in words is "eight hundred seventy thousand, four hundred seventy-nine".