90711075 has 48 divisors (see below), whose sum is σ = 184599296. Its totient is φ = 38275200.

The previous prime is 90711007. The next prime is 90711077. The reversal of 90711075 is 57011709.

It is not a de Polignac number, because 90711075 - 2⁷ = 90710947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90711077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180 + ... + 13470.

Almost surely, 2^90711075 is an apocalyptic number.

90711075 is an abundant number, since it is smaller than the sum of its proper divisors (93888221).

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

90711075 is a wasteful number, since it uses less digits than its factorization.

90711075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13324 (or 13319 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 30.

The square root of 90711075 is about 9524.2361898475. The cubic root of 90711075 is about 449.3176077000.

The spelling of 90711075 in words is "ninety million, seven hundred eleven thousand, seventy-five".