86285031 has 12 divisors (see below), whose sum is σ = 133830072. Its totient is φ = 49305648.

The previous prime is 86285027. The next prime is 86285039. The reversal of 86285031 is 13058268.

It is a happy number.

It is not a de Polignac number, because 86285031 - 2² = 86285027 is a prime.

It is a super-2 number, since 2×86285031² = 14890213149341922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86284983 and 86285001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86285039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293340 + ... + 293633.

It is an arithmetic number, because the mean of its divisors is an integer number (11152506).

Almost surely, 2^86285031 is an apocalyptic number.

86285031 is a deficient number, since it is larger than the sum of its proper divisors (47545041).

86285031 is a wasteful number, since it uses less digits than its factorization.

86285031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586990 (or 586983 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 86285031 is about 9288.9736246800. The cubic root of 86285031 is about 441.8876051039.

The spelling of 86285031 in words is "eighty-six million, two hundred eighty-five thousand, thirty-one".