90930028 has 24 divisors (see below), whose sum is σ = 182733824. Its totient is φ = 38782800.

The previous prime is 90930019. The next prime is 90930043. The reversal of 90930028 is 82003909.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1788 + ... + 13603.

Almost surely, 2^90930028 is an apocalyptic number.

It is an amenable number.

90930028 is an abundant number, since it is smaller than the sum of its proper divisors (91803796).

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

90930028 is a wasteful number, since it uses less digits than its factorization.

90930028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15613 (or 15611 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90930028 is about 9535.7237795565. The cubic root of 90930028 is about 449.6788292671.

The spelling of 90930028 in words is "ninety million, nine hundred thirty thousand, twenty-eight".