91607368 has 8 divisors (see below), whose sum is σ = 171763830. Its totient is φ = 45803680.

The previous prime is 91607363. The next prime is 91607377. The reversal of 91607368 is 86370619.

It can be written as a sum of positive squares in only one way, i.e., 91355364 + 252004 = 9558^2 + 502^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 91607368.

It is not an unprimeable number, because it can be changed into a prime (91607363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5725453 + ... + 5725468.

Almost surely, 2^91607368 is an apocalyptic number.

It is an amenable number.

91607368 is a deficient number, since it is larger than the sum of its proper divisors (80156462).

91607368 is a wasteful number, since it uses less digits than its factorization.

91607368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11450927 (or 11450923 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 91607368 is about 9571.1738047117. The cubic root of 91607368 is about 450.7926244605.

The spelling of 91607368 in words is "ninety-one million, six hundred seven thousand, three hundred sixty-eight".