91369688 has 8 divisors (see below), whose sum is σ = 171318180. Its totient is φ = 45684840.

The previous prime is 91369627. The next prime is 91369697. The reversal of 91369688 is 88696319.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710598 + ... + 5710613.

Almost surely, 2^91369688 is an apocalyptic number.

It is an amenable number.

91369688 is a deficient number, since it is larger than the sum of its proper divisors (79948492).

91369688 is a wasteful number, since it uses less digits than its factorization.

91369688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421217 (or 11421213 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 91369688 is about 9558.7492905714. The cubic root of 91369688 is about 450.4024186252.

The spelling of 91369688 in words is "ninety-one million, three hundred sixty-nine thousand, six hundred eighty-eight".