65899374 has 16 divisors (see below), whose sum is σ = 133031808. Its totient is φ = 21760952.

The previous prime is 65899373. The next prime is 65899381. The reversal of 65899374 is 47399856.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65899373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50682 + ... + 51965.

It is an arithmetic number, because the mean of its divisors is an integer number (8314488).

Almost surely, 2^65899374 is an apocalyptic number.

65899374 is an abundant number, since it is smaller than the sum of its proper divisors (67132434).

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

65899374 is a wasteful number, since it uses less digits than its factorization.

65899374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102759.

The product of its digits is 1632960, while the sum is 51.

The square root of 65899374 is about 8117.8429400919. The cubic root of 65899374 is about 403.9185168804.

The spelling of 65899374 in words is "sixty-five million, eight hundred ninety-nine thousand, three hundred seventy-four".