65989272 has 32 divisors (see below), whose sum is σ = 165196080. Its totient is φ = 21966720.

The previous prime is 65989271. The next prime is 65989279. The reversal of 65989272 is 27298956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65989271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23158 + ... + 25850.

Almost surely, 2^65989272 is an apocalyptic number.

It is an amenable number.

65989272 is an abundant number, since it is smaller than the sum of its proper divisors (99206808).

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

65989272 is a wasteful number, since it uses less digits than its factorization.

65989272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723 (or 3719 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 65989272 is about 8123.3781150455. The cubic root of 65989272 is about 404.1021047025.

The spelling of 65989272 in words is "sixty-five million, nine hundred eighty-nine thousand, two hundred seventy-two".