86890902 has 32 divisors (see below), whose sum is σ = 205459200. Its totient is φ = 23969568.

The previous prime is 86890891. The next prime is 86890907. The reversal of 86890902 is 20909868.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86890907) 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, 34452 + ... + 36887.

It is an arithmetic number, because the mean of its divisors is an integer number (6420600).

Almost surely, 2^86890902 is an apocalyptic number.

86890902 is an abundant number, since it is smaller than the sum of its proper divisors (118568298).

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

86890902 is a wasteful number, since it uses less digits than its factorization.

86890902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71380.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 86890902 is about 9321.5289518405. The cubic root of 86890902 is about 442.9194669038.

The spelling of 86890902 in words is "eighty-six million, eight hundred ninety thousand, nine hundred two".