90480457 has 4 divisors (see below), whose sum is σ = 90509440. Its totient is φ = 90451476.

The previous prime is 90480449. The next prime is 90480461. The reversal of 90480457 is 75408409.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75408409 = 127 ⋅593767.

It is a cyclic number.

It is not a de Polignac number, because 90480457 - 2³ = 90480449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90480407) 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, 9153 + ... + 16270.

It is an arithmetic number, because the mean of its divisors is an integer number (22627360).

Almost surely, 2^90480457 is an apocalyptic number.

It is an amenable number.

90480457 is a deficient number, since it is larger than the sum of its proper divisors (28983).

90480457 is a wasteful number, since it uses less digits than its factorization.

90480457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28982.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 90480457 is about 9512.1215824862. The cubic root of 90480457 is about 448.9365125023.

The spelling of 90480457 in words is "ninety million, four hundred eighty thousand, four hundred fifty-seven".