90358865 has 8 divisors (see below), whose sum is σ = 108711720. Its totient is φ = 72099712.

The previous prime is 90358843. The next prime is 90358871. The reversal of 90358865 is 56885309.

It can be written as a sum of positive squares in 4 ways, for example, as 11806096 + 78552769 = 3436^2 + 8863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90358865 - 2²⁶ = 23250001 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21284 + ... + 25173.

It is an arithmetic number, because the mean of its divisors is an integer number (13588965).

Almost surely, 2^90358865 is an apocalyptic number.

It is an amenable number.

90358865 is a deficient number, since it is larger than the sum of its proper divisors (18352855).

90358865 is a wasteful number, since it uses less digits than its factorization.

90358865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46851.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 90358865 is about 9505.7280099948. The cubic root of 90358865 is about 448.7353215094.

The spelling of 90358865 in words is "ninety million, three hundred fifty-eight thousand, eight hundred sixty-five".