65993672 has 16 divisors (see below), whose sum is σ = 123826560. Its totient is φ = 32973264.

The previous prime is 65993657. The next prime is 65993689. The reversal of 65993672 is 27639956.

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, 16493 + ... + 20099.

It is an arithmetic number, because the mean of its divisors is an integer number (7739160).

Almost surely, 2^65993672 is an apocalyptic number.

It is an amenable number.

65993672 is a deficient number, since it is larger than the sum of its proper divisors (57832888).

65993672 is a wasteful number, since it uses less digits than its factorization.

65993672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900 (or 5896 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 65993672 is about 8123.6489338228. The cubic root of 65993672 is about 404.1110860096. Note that the first 3 decimals are identical.

The spelling of 65993672 in words is "sixty-five million, nine hundred ninety-three thousand, six hundred seventy-two".