90284904 has 48 divisors (see below), whose sum is σ = 245290500. Its totient is φ = 30000384.

The previous prime is 90284899. The next prime is 90284923. The reversal of 90284904 is 40948209.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90212004 + 72900 = 9498^2 + 270^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23332 + ... + 26924.

Almost surely, 2^90284904 is an apocalyptic number.

It is an amenable number.

90284904 is an abundant number, since it is smaller than the sum of its proper divisors (155005596).

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

90284904 is a wasteful number, since it uses less digits than its factorization.

90284904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954 (or 3947 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90284904 is about 9501.8368750468. The cubic root of 90284904 is about 448.6128543796.

The spelling of 90284904 in words is "ninety million, two hundred eighty-four thousand, nine hundred four".