90636722 has 8 divisors (see below), whose sum is σ = 148314672. Its totient is φ = 41198500.

The previous prime is 90636709. The next prime is 90636751. The reversal of 90636722 is 22763609.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2059904 + ... + 2059947.

It is an arithmetic number, because the mean of its divisors is an integer number (18539334).

Almost surely, 2^90636722 is an apocalyptic number.

90636722 is a deficient number, since it is larger than the sum of its proper divisors (57677950).

90636722 is a wasteful number, since it uses less digits than its factorization.

90636722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119864.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 90636722 is about 9520.3320320249. The cubic root of 90636722 is about 449.1948103308.

The spelling of 90636722 in words is "ninety million, six hundred thirty-six thousand, seven hundred twenty-two".