90920004 has 24 divisors (see below), whose sum is σ = 242453568. Its totient is φ = 25977120.

The previous prime is 90919979. The next prime is 90920021. The reversal of 90920004 is 40002909.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541107 + ... + 541274.

It is an arithmetic number, because the mean of its divisors is an integer number (10102232).

Almost surely, 2^90920004 is an apocalyptic number.

It is an amenable number.

90920004 is an abundant number, since it is smaller than the sum of its proper divisors (151533564).

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

90920004 is a wasteful number, since it uses less digits than its factorization.

90920004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082395 (or 1082393 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 90920004 is about 9535.1981625974. The cubic root of 90920004 is about 449.6623046700.

The spelling of 90920004 in words is "ninety million, nine hundred twenty thousand, four".