91616044 has 12 divisors (see below), whose sum is σ = 172661104. Its totient is φ = 42284304.

The previous prime is 91616027. The next prime is 91616051. The reversal of 91616044 is 44061619.

It is a junction number, because it is equal to n+sod(n) for n = 91615997 and 91616015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880872 + ... + 880975.

Almost surely, 2^91616044 is an apocalyptic number.

It is an amenable number.

91616044 is a deficient number, since it is larger than the sum of its proper divisors (81045060).

91616044 is a wasteful number, since it uses less digits than its factorization.

91616044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761864 (or 1761862 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 91616044 is about 9571.6270299255. The cubic root of 91616044 is about 450.8068553149.

The spelling of 91616044 in words is "ninety-one million, six hundred sixteen thousand, forty-four".