64743792 has 40 divisors (see below), whose sum is σ = 176060160. Its totient is φ = 20445120.

The previous prime is 64743787. The next prime is 64743799. The reversal of 64743792 is 29734746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64743799) 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, 34584 + ... + 36407.

It is an arithmetic number, because the mean of its divisors is an integer number (4401504).

Almost surely, 2^64743792 is an apocalyptic number.

It is an amenable number.

64743792 is an abundant number, since it is smaller than the sum of its proper divisors (111316368).

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

64743792 is a wasteful number, since it uses less digits than its factorization.

64743792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71021 (or 71015 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 64743792 is about 8046.3527141184. The cubic root of 64743792 is about 401.5436022346.

The spelling of 64743792 in words is "sixty-four million, seven hundred forty-three thousand, seven hundred ninety-two".