65712434 has 16 divisors (see below), whose sum is σ = 102323520. Its totient is φ = 31612560.

The previous prime is 65712419. The next prime is 65712443. The reversal of 65712434 is 43421756.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65712434.

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, 16217 + ... + 19859.

It is an arithmetic number, because the mean of its divisors is an integer number (6395220).

Almost surely, 2^65712434 is an apocalyptic number.

65712434 is a deficient number, since it is larger than the sum of its proper divisors (36611086).

65712434 is a wasteful number, since it uses less digits than its factorization.

65712434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985.

The product of its digits is 20160, while the sum is 32.

The square root of 65712434 is about 8106.3206203555. The cubic root of 65712434 is about 403.5362166385.

The spelling of 65712434 in words is "sixty-five million, seven hundred twelve thousand, four hundred thirty-four".