65913792 has 56 divisors (see below), whose sum is σ = 199314816. Its totient is φ = 18832128.

The previous prime is 65913779. The next prime is 65913823. The reversal of 65913792 is 29731956.

It is a tau number, because it is divible by the number of its divisors (56).

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

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23178 + ... + 25865.

Almost surely, 2^65913792 is an apocalyptic number.

It is an amenable number.

65913792 is an abundant number, since it is smaller than the sum of its proper divisors (133401024).

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

65913792 is a wasteful number, since it uses less digits than its factorization.

65913792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49065 (or 49055 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 65913792 is about 8118.7309353125. The cubic root of 65913792 is about 403.9479722564.

The spelling of 65913792 in words is "sixty-five million, nine hundred thirteen thousand, seven hundred ninety-two".