91437696 has 384 divisors, whose sum is σ = 343699200. Its totient is φ = 22708224.

The previous prime is 91437691. The next prime is 91437707. The reversal of 91437696 is 69673419.

It is a tau number, because it is divible by the number of its divisors (384).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (244944) is a multiple of the sum of its prime divisors (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91437691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3153010 + ... + 3153038.

It is an arithmetic number, because the mean of its divisors is an integer number (895050).

Almost surely, 2^91437696 is an apocalyptic number.

91437696 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91437696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171849600).

91437696 is an abundant number, since it is smaller than the sum of its proper divisors (252261504).

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

91437696 is a wasteful number, since it uses less digits than its factorization.

91437696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 81 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 91437696 is about 9562.3059980321. The cubic root of 91437696 is about 450.5141382840.

The spelling of 91437696 in words is "ninety-one million, four hundred thirty-seven thousand, six hundred ninety-six".