91358336 has 16 divisors (see below), whose sum is σ = 182003190. Its totient is φ = 45679104.

The previous prime is 91358321. The next prime is 91358347. The reversal of 91358336 is 63385319.

It can be written as a sum of positive squares in only one way, i.e., 91087936 + 270400 = 9544^2 + 520^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 91358336.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356741 + ... + 356996.

Almost surely, 2^91358336 is an apocalyptic number.

It is an amenable number.

91358336 is a deficient number, since it is larger than the sum of its proper divisors (90644854).

91358336 is an equidigital number, since it uses as much as digits as its factorization.

91358336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713751 (or 713739 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 91358336 is about 9558.1554705916. The cubic root of 91358336 is about 450.3837648093.

It can be divided in two parts, 9135 and 8336, that added together give a palindrome (17471).

The spelling of 91358336 in words is "ninety-one million, three hundred fifty-eight thousand, three hundred thirty-six".