65709982 has 24 divisors (see below), whose sum is σ = 107946216. Its totient is φ = 29821968.

The previous prime is 65709953. The next prime is 65709989. The reversal of 65709982 is 28990756.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65709989) 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 11 ways as a sum of consecutive naturals, for example, 116433 + ... + 116995.

It is an arithmetic number, because the mean of its divisors is an integer number (4497759).

Almost surely, 2^65709982 is an apocalyptic number.

65709982 is a deficient number, since it is larger than the sum of its proper divisors (42236234).

65709982 is a wasteful number, since it uses less digits than its factorization.

65709982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 65709982 is about 8106.1693789360. The cubic root of 65709982 is about 403.5311973798.

The spelling of 65709982 in words is "sixty-five million, seven hundred nine thousand, nine hundred eighty-two".