86425866 has 32 divisors (see below), whose sum is σ = 194438400. Its totient is φ = 28807164.

The previous prime is 86425847. The next prime is 86425897. The reversal of 86425866 is 66852468.

86425866 is a `hidden beast` number, since 8 + 64 + 2 + 586 + 6 = 666.

86425866 is nontrivially palindromic in base 5.

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, 5506 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (6076200).

Almost surely, 2^86425866 is an apocalyptic number.

86425866 is an abundant number, since it is smaller than the sum of its proper divisors (108012534).

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

86425866 is an equidigital number, since it uses as much as digits as its factorization.

86425866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19782 (or 19764 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 86425866 is about 9296.5512960452. The cubic root of 86425866 is about 442.1278917123.

The spelling of 86425866 in words is "eighty-six million, four hundred twenty-five thousand, eight hundred sixty-six".