91315704 has 128 divisors (see below), whose sum is σ = 260029440. Its totient is φ = 26560512.

The previous prime is 91315673. The next prime is 91315711. The reversal of 91315704 is 40751319.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347077 + ... + 347339.

It is an arithmetic number, because the mean of its divisors is an integer number (2031480).

Almost surely, 2^91315704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91315704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130014720).

91315704 is an abundant number, since it is smaller than the sum of its proper divisors (168713736).

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

91315704 is a wasteful number, since it uses less digits than its factorization.

91315704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 91315704 is about 9555.9250729587. The cubic root of 91315704 is about 450.3136973186.

The spelling of 91315704 in words is "ninety-one million, three hundred fifteen thousand, seven hundred four".