90075016 has 8 divisors (see below), whose sum is σ = 168890670. Its totient is φ = 45037504.

The previous prime is 90074987. The next prime is 90075043. The reversal of 90075016 is 61057009.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63138916 + 26936100 = 7946^2 + 5190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×90075016² = 16227017014800512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5629681 + ... + 5629696.

Almost surely, 2^90075016 is an apocalyptic number.

90075016 is the 6003-rd centered pentagonal number.

It is an amenable number.

90075016 is a deficient number, since it is larger than the sum of its proper divisors (78815654).

90075016 is a wasteful number, since it uses less digits than its factorization.

90075016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11259383 (or 11259379 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 90075016 is about 9490.7858473364. The cubic root of 90075016 is about 448.2649500999.

The spelling of 90075016 in words is "ninety million, seventy-five thousand, sixteen".