90772601 has 4 divisors (see below), whose sum is σ = 90922752. Its totient is φ = 90622452.

The previous prime is 90772597. The next prime is 90772663. The reversal of 90772601 is 10627709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90772601 - 2² = 90772597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90772691) 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 3 ways as a sum of consecutive naturals, for example, 74165 + ... + 75378.

It is an arithmetic number, because the mean of its divisors is an integer number (22730688).

Almost surely, 2^90772601 is an apocalyptic number.

It is an amenable number.

90772601 is a deficient number, since it is larger than the sum of its proper divisors (150151).

90772601 is a wasteful number, since it uses less digits than its factorization.

90772601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150150.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 90772601 is about 9527.4656126380. The cubic root of 90772601 is about 449.4191699674.

The spelling of 90772601 in words is "ninety million, seven hundred seventy-two thousand, six hundred one".