90475828 has 6 divisors (see below), whose sum is σ = 158332706. Its totient is φ = 45237912.

The previous prime is 90475811. The next prime is 90475831. The reversal of 90475828 is 82857409.

It can be written as a sum of positive squares in only one way, i.e., 50381604 + 40094224 = 7098^2 + 6332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11309475 + ... + 11309482.

Almost surely, 2^90475828 is an apocalyptic number.

It is an amenable number.

90475828 is a deficient number, since it is larger than the sum of its proper divisors (67856878).

90475828 is a wasteful number, since it uses less digits than its factorization.

90475828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22618961 (or 22618959 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 90475828 is about 9511.8782582621. The cubic root of 90475828 is about 448.9288564750.

The spelling of 90475828 in words is "ninety million, four hundred seventy-five thousand, eight hundred twenty-eight".