90708553 has 12 divisors (see below), whose sum is σ = 99701328. Its totient is φ = 82470960.

The previous prime is 90708539. The next prime is 90708557. The reversal of 90708553 is 35580709.

It is not a de Polignac number, because 90708553 - 2⁵ = 90708521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90708557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7318 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (8308444).

Almost surely, 2^90708553 is an apocalyptic number.

It is an amenable number.

90708553 is a deficient number, since it is larger than the sum of its proper divisors (8992775).

90708553 is a wasteful number, since it uses less digits than its factorization.

90708553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104 (or 8091 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 90708553 is about 9524.1037898587. The cubic root of 90708553 is about 449.3134436017.

The spelling of 90708553 in words is "ninety million, seven hundred eight thousand, five hundred fifty-three".