91905696 has 36 divisors (see below), whose sum is σ = 261357642. Its totient is φ = 30635136.

The previous prime is 91905691. The next prime is 91905701. The reversal of 91905696 is 69650919.

It is an interprime number because it is at equal distance from previous prime (91905691) and next prime (91905701).

It can be written as a sum of positive squares in only one way, i.e., 91470096 + 435600 = 9564^2 + 660^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (91905691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159271 + ... + 159846.

Almost surely, 2^91905696 is an apocalyptic number.

91905696 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91905696 is an abundant number, since it is smaller than the sum of its proper divisors (169451946).

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

91905696 is a wasteful number, since it uses less digits than its factorization.

91905696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319133 (or 319122 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 91905696 is about 9586.7458503916. The cubic root of 91905696 is about 451.2814437258.

The spelling of 91905696 in words is "ninety-one million, nine hundred five thousand, six hundred ninety-six".