86256690 has 32 divisors (see below), whose sum is σ = 222941376. Its totient is φ = 21232320.

The previous prime is 86256689. The next prime is 86256763. The reversal of 86256690 is 9665268.

It is a super-2 number, since 2×86256690² = 14880433139512200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110196 + ... + 110975.

It is an arithmetic number, because the mean of its divisors is an integer number (6966918).

Almost surely, 2^86256690 is an apocalyptic number.

86256690 is an abundant number, since it is smaller than the sum of its proper divisors (136684686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86256690 is a wasteful number, since it uses less digits than its factorization.

86256690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221194.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 86256690 is about 9287.4479810118. The cubic root of 86256690 is about 441.8392193145.

The spelling of 86256690 in words is "eighty-six million, two hundred fifty-six thousand, six hundred ninety".