90722877 has 24 divisors (see below), whose sum is σ = 140382528. Its totient is φ = 51051840.

The previous prime is 90722861. The next prime is 90722881. The reversal of 90722877 is 77822709.

It is not a de Polignac number, because 90722877 - 2⁴ = 90722861 is a prime.

It is a super-2 number, since 2×90722877² = 16461280822314258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90722857) 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 23 ways as a sum of consecutive naturals, for example, 105433 + ... + 106289.

It is an arithmetic number, because the mean of its divisors is an integer number (5849272).

Almost surely, 2^90722877 is an apocalyptic number.

It is an amenable number.

90722877 is a deficient number, since it is larger than the sum of its proper divisors (49659651).

90722877 is an equidigital number, since it uses as much as digits as its factorization.

90722877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 90722877 is about 9524.8557469392. The cubic root of 90722877 is about 449.3370930696.

The spelling of 90722877 in words is "ninety million, seven hundred twenty-two thousand, eight hundred seventy-seven".