65387792 has 20 divisors (see below), whose sum is σ = 127854540. Its totient is φ = 32393088.

The previous prime is 65387767. The next prime is 65387801. The reversal of 65387792 is 29778356.

It can be written as a sum of positive squares in 2 ways, for example, as 30294016 + 35093776 = 5504^2 + 5924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17003 + ... + 20490.

It is an arithmetic number, because the mean of its divisors is an integer number (6392727).

Almost surely, 2^65387792 is an apocalyptic number.

It is an amenable number.

65387792 is a deficient number, since it is larger than the sum of its proper divisors (62466748).

65387792 is a wasteful number, since it uses less digits than its factorization.

65387792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37610 (or 37604 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 65387792 is about 8086.2718232817. The cubic root of 65387792 is about 402.8705834304.

The spelling of 65387792 in words is "sixty-five million, three hundred eighty-seven thousand, seven hundred ninety-two".