65712472 has 64 divisors (see below), whose sum is σ = 148308480. Its totient is φ = 26687232.

The previous prime is 65712457. The next prime is 65712473. The reversal of 65712472 is 27421756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65712473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209788 + ... + 210100.

It is an arithmetic number, because the mean of its divisors is an integer number (2317320).

Almost surely, 2^65712472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65712472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74154240).

65712472 is an abundant number, since it is smaller than the sum of its proper divisors (82596008).

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

65712472 is a wasteful number, since it uses less digits than its factorization.

65712472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 508 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 65712472 is about 8106.3229642052. The cubic root of 65712472 is about 403.5362944237.

The spelling of 65712472 in words is "sixty-five million, seven hundred twelve thousand, four hundred seventy-two".