90065730 has 16 divisors (see below), whose sum is σ = 216157824. Its totient is φ = 24017520.

The previous prime is 90065713. The next prime is 90065737. The reversal of 90065730 is 3756009.

It is a super-2 number, since 2×90065730² = 16223671440865800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3002191 = 90065730 / (9 + 0 + 0 + 6 + 5 + 7 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (90065737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501066 + ... + 1501125.

It is an arithmetic number, because the mean of its divisors is an integer number (13509864).

Almost surely, 2^90065730 is an apocalyptic number.

90065730 is an abundant number, since it is smaller than the sum of its proper divisors (126092094).

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

90065730 is a wasteful number, since it uses less digits than its factorization.

90065730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002201.

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

The square root of 90065730 is about 9490.2966233938. The cubic root of 90065730 is about 448.2495454162.

The spelling of 90065730 in words is "ninety million, sixty-five thousand, seven hundred thirty".