64077792 has 24 divisors (see below), whose sum is σ = 168204456. Its totient is φ = 21359232.

The previous prime is 64077763. The next prime is 64077799. The reversal of 64077792 is 29777046.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64077799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333643 + ... + 333834.

It is an arithmetic number, because the mean of its divisors is an integer number (7008519).

Almost surely, 2^64077792 is an apocalyptic number.

It is an amenable number.

64077792 is an abundant number, since it is smaller than the sum of its proper divisors (104126664).

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

64077792 is a wasteful number, since it uses less digits than its factorization.

64077792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667490 (or 667482 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 64077792 is about 8004.8605234570. The cubic root of 64077792 is about 400.1620010470.

The spelling of 64077792 in words is "sixty-four million, seventy-seven thousand, seven hundred ninety-two".