90464057 has 4 divisors (see below), whose sum is σ = 92170980. Its totient is φ = 88757136.

The previous prime is 90464053. The next prime is 90464117. The reversal of 90464057 is 75046409.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81198121 + 9265936 = 9011^2 + 3044^2 .

It is a cyclic number.

It is not a de Polignac number, because 90464057 - 2² = 90464053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90464053) 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, 853382 + ... + 853487.

It is an arithmetic number, because the mean of its divisors is an integer number (23042745).

Almost surely, 2^90464057 is an apocalyptic number.

It is an amenable number.

90464057 is a deficient number, since it is larger than the sum of its proper divisors (1706923).

90464057 is a wasteful number, since it uses less digits than its factorization.

90464057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706922.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 90464057 is about 9511.2594854730. The cubic root of 90464057 is about 448.9093869258.

The spelling of 90464057 in words is "ninety million, four hundred sixty-four thousand, fifty-seven".