65814472 has 8 divisors (see below), whose sum is σ = 123402150. Its totient is φ = 32907232.

The previous prime is 65814451. The next prime is 65814473. The reversal of 65814472 is 27441856.

It can be written as a sum of positive squares in only one way, i.e., 60310756 + 5503716 = 7766^2 + 2346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (65814473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4113397 + ... + 4113412.

Almost surely, 2^65814472 is an apocalyptic number.

It is an amenable number.

65814472 is a deficient number, since it is larger than the sum of its proper divisors (57587678).

65814472 is a wasteful number, since it uses less digits than its factorization.

65814472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226815 (or 8226811 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 65814472 is about 8112.6119098599. The cubic root of 65814472 is about 403.7449784191.

The spelling of 65814472 in words is "sixty-five million, eight hundred fourteen thousand, four hundred seventy-two".