85358031 has 16 divisors (see below), whose sum is σ = 125556480. Its totient is φ = 51149120.

The previous prime is 85358017. The next prime is 85358033. The reversal of 85358031 is 13085358.

It is not a de Polignac number, because 85358031 - 2¹⁰ = 85357007 is a prime.

It is a super-2 number, since 2×85358031² = 14571986912393922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 85357983 and 85358001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85358033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11595 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (7847280).

Almost surely, 2^85358031 is an apocalyptic number.

85358031 is a deficient number, since it is larger than the sum of its proper divisors (40198449).

85358031 is a wasteful number, since it uses less digits than its factorization.

85358031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29166.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 85358031 is about 9238.9410107436. The cubic root of 85358031 is about 440.2994363278.

The spelling of 85358031 in words is "eighty-five million, three hundred fifty-eight thousand, thirty-one".