90885038 has 4 divisors (see below), whose sum is σ = 136327560. Its totient is φ = 45442518.

The previous prime is 90885017. The next prime is 90885071. The reversal of 90885038 is 83058809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83058809 = 157 ⋅529037.

It is a super-2 number, since 2×90885038² = 16520180264522888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90884986 and 90885004.

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, 22721258 + ... + 22721261.

It is an arithmetic number, because the mean of its divisors is an integer number (34081890).

Almost surely, 2^90885038 is an apocalyptic number.

90885038 is a deficient number, since it is larger than the sum of its proper divisors (45442522).

90885038 is a wasteful number, since it uses less digits than its factorization.

90885038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45442521.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 90885038 is about 9533.3644638186. The cubic root of 90885038 is about 449.6046535941.

The spelling of 90885038 in words is "ninety million, eight hundred eighty-five thousand, thirty-eight".