90075306 has 16 divisors (see below), whose sum is σ = 181159200. Its totient is φ = 29857008.

The previous prime is 90075289. The next prime is 90075317. The reversal of 90075306 is 60357009.

It is a super-2 number, since 2×90075306² = 16227121501987272, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40861 + ... + 43008.

It is an arithmetic number, because the mean of its divisors is an integer number (11322450).

Almost surely, 2^90075306 is an apocalyptic number.

90075306 is an abundant number, since it is smaller than the sum of its proper divisors (91083894).

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

90075306 is a wasteful number, since it uses less digits than its factorization.

90075306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84053.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 90075306 is about 9490.8011253002. The cubic root of 90075306 is about 448.2654311682.

The spelling of 90075306 in words is "ninety million, seventy-five thousand, three hundred six".