90909058 has 8 divisors (see below), whose sum is σ = 137345040. Its totient is φ = 45127380.

The previous prime is 90909031. The next prime is 90909059. The reversal of 90909058 is 85090909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 90909058.

It is not an unprimeable number, because it can be changed into a prime (90909059) 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, 163228 + ... + 163783.

It is an arithmetic number, because the mean of its divisors is an integer number (17168130).

Almost surely, 2^90909058 is an apocalyptic number.

90909058 is a deficient number, since it is larger than the sum of its proper divisors (46435982).

90909058 is a wasteful number, since it uses less digits than its factorization.

90909058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327152.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 90909058 is about 9534.6241666885. The cubic root of 90909058 is about 449.6442587655.

The spelling of 90909058 in words is "ninety million, nine hundred nine thousand, fifty-eight".