65387472 has 40 divisors (see below), whose sum is σ = 169337376. Its totient is φ = 21741696.

The previous prime is 65387467. The next prime is 65387507. The reversal of 65387472 is 27478356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20958 + ... + 23874.

Almost surely, 2^65387472 is an apocalyptic number.

It is an amenable number.

65387472 is an abundant number, since it is smaller than the sum of its proper divisors (103949904).

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

65387472 is a wasteful number, since it uses less digits than its factorization.

65387472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395 (or 3389 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 65387472 is about 8086.2520366360. The cubic root of 65387472 is about 402.8699262293.

The spelling of 65387472 in words is "sixty-five million, three hundred eighty-seven thousand, four hundred seventy-two".