91357704 has 96 divisors (see below), whose sum is σ = 254392320. Its totient is φ = 29611008.

The previous prime is 91357703. The next prime is 91357723. The reversal of 91357704 is 40775319.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91357703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 719289 + ... + 719415.

It is an arithmetic number, because the mean of its divisors is an integer number (2649920).

Almost surely, 2^91357704 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 91357704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127196160).

91357704 is an abundant number, since it is smaller than the sum of its proper divisors (163034616).

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

91357704 is a wasteful number, since it uses less digits than its factorization.

91357704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 91357704 is about 9558.1224097623. The cubic root of 91357704 is about 450.3827262498.

The spelling of 91357704 in words is "ninety-one million, three hundred fifty-seven thousand, seven hundred four".