91646032 has 40 divisors (see below), whose sum is σ = 184631040. Its totient is φ = 44016000.

The previous prime is 91646011. The next prime is 91646033. The reversal of 91646032 is 23064619.

It is a junction number, because it is equal to n+sod(n) for n = 91645985 and 91646003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91646033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121657 + ... + 122407.

It is an arithmetic number, because the mean of its divisors is an integer number (4615776).

Almost surely, 2^91646032 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 91646032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92315520).

91646032 is an abundant number, since it is smaller than the sum of its proper divisors (92985008).

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

91646032 is a wasteful number, since it uses less digits than its factorization.

91646032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 91646032 is about 9573.1934065911. The cubic root of 91646032 is about 450.8560363704.

The spelling of 91646032 in words is "ninety-one million, six hundred forty-six thousand, thirty-two".