65974812 has 12 divisors (see below), whose sum is σ = 153941256. Its totient is φ = 21991600.

The previous prime is 65974801. The next prime is 65974823. The reversal of 65974812 is 21847956.

It is an interprime number because it is at equal distance from previous prime (65974801) and next prime (65974823).

It is a tau number, because it is divible by the number of its divisors (12).

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 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, 2748939 + ... + 2748962.

It is an arithmetic number, because the mean of its divisors is an integer number (12828438).

Almost surely, 2^65974812 is an apocalyptic number.

It is an amenable number.

65974812 is an abundant number, since it is smaller than the sum of its proper divisors (87966444).

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

65974812 is a wasteful number, since it uses less digits than its factorization.

65974812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497908 (or 5497906 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 65974812 is about 8122.4880424658. The cubic root of 65974812 is about 404.0725860494.

The spelling of 65974812 in words is "sixty-five million, nine hundred seventy-four thousand, eight hundred twelve".