90910492 has 12 divisors (see below), whose sum is σ = 168451920. Its totient is φ = 42781376.

The previous prime is 90910453. The next prime is 90910493. The reversal of 90910492 is 29401909.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90910493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668392 + ... + 668527.

It is an arithmetic number, because the mean of its divisors is an integer number (14037660).

Almost surely, 2^90910492 is an apocalyptic number.

It is an amenable number.

90910492 is a deficient number, since it is larger than the sum of its proper divisors (77541428).

90910492 is a wasteful number, since it uses less digits than its factorization.

90910492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336940 (or 1336938 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 90910492 is about 9534.6993660000. The cubic root of 90910492 is about 449.6466229835.

The spelling of 90910492 in words is "ninety million, nine hundred ten thousand, four hundred ninety-two".