90950904 has 128 divisors (see below), whose sum is σ = 279072000. Its totient is φ = 27216000.

The previous prime is 90950887. The next prime is 90950911. The reversal of 90950904 is 40905909.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239787 + ... + 240165.

It is an arithmetic number, because the mean of its divisors is an integer number (2180250).

Almost surely, 2^90950904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90950904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139536000).

90950904 is an abundant number, since it is smaller than the sum of its proper divisors (188121096).

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

90950904 is a wasteful number, since it uses less digits than its factorization.

90950904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 90950904 is about 9536.8183373702. The cubic root of 90950904 is about 449.7132395242.

The spelling of 90950904 in words is "ninety million, nine hundred fifty thousand, nine hundred four".