90980862 has 32 divisors (see below), whose sum is σ = 212796672. Its totient is φ = 25389504.

The previous prime is 90980843. The next prime is 90980863. The reversal of 90980862 is 26808909.

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 (90980863) 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, 23383 + ... + 26994.

It is an arithmetic number, because the mean of its divisors is an integer number (6649896).

Almost surely, 2^90980862 is an apocalyptic number.

90980862 is an abundant number, since it is smaller than the sum of its proper divisors (121815810).

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

90980862 is a wasteful number, since it uses less digits than its factorization.

90980862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50432.

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

The square root of 90980862 is about 9538.3888576635. The cubic root of 90980862 is about 449.7626105940.

The spelling of 90980862 in words is "ninety million, nine hundred eighty thousand, eight hundred sixty-two".