64091196 has 96 divisors (see below), whose sum is σ = 180633600. Its totient is φ = 19535040.

The previous prime is 64091177. The next prime is 64091197. The reversal of 64091196 is 69119046.

64091196 is a `hidden beast` number, since 640 + 9 + 1 + 1 + 9 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64091196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64091197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268045 + ... + 268283.

It is an arithmetic number, because the mean of its divisors is an integer number (1881600).

Almost surely, 2^64091196 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 64091196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90316800).

64091196 is an abundant number, since it is smaller than the sum of its proper divisors (116542404).

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

64091196 is a wasteful number, since it uses less digits than its factorization.

64091196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 64091196 is about 8005.6977209985. The cubic root of 64091196 is about 400.1899014960.

The spelling of 64091196 in words is "sixty-four million, ninety-one thousand, one hundred ninety-six".