65372733 has 6 divisors (see below), whose sum is σ = 94427294. Its totient is φ = 43581816.

The previous prime is 65372729. The next prime is 65372743. The reversal of 65372733 is 33727356.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60886809 + 4485924 = 7803^2 + 2118^2 .

It is not a de Polignac number, because 65372733 - 2² = 65372729 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65372743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3631810 + ... + 3631827.

Almost surely, 2^65372733 is an apocalyptic number.

It is an amenable number.

65372733 is a deficient number, since it is larger than the sum of its proper divisors (29054561).

65372733 is a wasteful number, since it uses less digits than its factorization.

65372733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263643 (or 7263640 counting only the distinct ones).

The product of its digits is 79380, while the sum is 36.

The square root of 65372733 is about 8085.3406236225. The cubic root of 65372733 is about 402.8396536308.

The spelling of 65372733 in words is "sixty-five million, three hundred seventy-two thousand, seven hundred thirty-three".