90788722 has 8 divisors (see below), whose sum is σ = 137713500. Its totient is φ = 44884224.

The previous prime is 90788717. The next prime is 90788723. The reversal of 90788722 is 22788709.

It can be written as a sum of positive squares in 2 ways, for example, as 88003161 + 2785561 = 9381^2 + 1669^2 .

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

It is not an unprimeable number, because it can be changed into a prime (90788723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254847 + ... + 255202.

Almost surely, 2^90788722 is an apocalyptic number.

90788722 is a deficient number, since it is larger than the sum of its proper divisors (46924778).

90788722 is a wasteful number, since it uses less digits than its factorization.

90788722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510140.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 90788722 is about 9528.3116027972. The cubic root of 90788722 is about 449.4457736543.

The spelling of 90788722 in words is "ninety million, seven hundred eighty-eight thousand, seven hundred twenty-two".