91607064 has 32 divisors (see below), whose sum is σ = 230215920. Its totient is φ = 30375936.

The previous prime is 91607059. The next prime is 91607093. The reversal of 91607064 is 46070619.

It is a happy number.

It is a congruent number.

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, 5257 + ... + 14520.

Almost surely, 2^91607064 is an apocalyptic number.

It is an amenable number.

91607064 is an abundant number, since it is smaller than the sum of its proper divisors (138608856).

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

91607064 is a wasteful number, since it uses less digits than its factorization.

91607064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19979 (or 19975 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 91607064 is about 9571.1579236788. The cubic root of 91607064 is about 450.7921258066.

The spelling of 91607064 in words is "ninety-one million, six hundred seven thousand, sixty-four".