85902039 has 10 divisors (see below), whose sum is σ = 128322920. Its totient is φ = 57267972.

The previous prime is 85902017. The next prime is 85902043. The reversal of 85902039 is 93020958.

It is a de Polignac number, because none of the positive numbers 2^k-85902039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85901994 and 85902012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85903039) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 530179 + ... + 530340.

It is an arithmetic number, because the mean of its divisors is an integer number (12832292).

Almost surely, 2^85902039 is an apocalyptic number.

85902039 is a deficient number, since it is larger than the sum of its proper divisors (42420881).

85902039 is a wasteful number, since it uses less digits than its factorization.

85902039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060531 (or 1060522 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 85902039 is about 9268.3352874181. The cubic root of 85902039 is about 441.2328355373.

The spelling of 85902039 in words is "eighty-five million, nine hundred two thousand, thirty-nine".