91606416 has 40 divisors (see below), whose sum is σ = 258165024. Its totient is φ = 27759360.

The previous prime is 91606399. The next prime is 91606439. The reversal of 91606416 is 61460619.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86221 + ... + 87276.

Almost surely, 2^91606416 is an apocalyptic number.

It is an amenable number.

91606416 is an abundant number, since it is smaller than the sum of its proper divisors (166558608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91606416 is a wasteful number, since it uses less digits than its factorization.

91606416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173519 (or 173513 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 91606416 is about 9571.1240719155. The cubic root of 91606416 is about 450.7910628828.

It can be divided in two parts, 9160 and 6416, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 91606416 in words is "ninety-one million, six hundred six thousand, four hundred sixteen".