65724337 has 6 divisors (see below), whose sum is σ = 76454898. Its totient is φ = 56335104.

The previous prime is 65724331. The next prime is 65724341. The reversal of 65724337 is 73342756.

It can be written as a sum of positive squares in only one way, i.e., 64577296 + 1147041 = 8036^2 + 1071^2 .

It is not a de Polignac number, because 65724337 - 2⁷ = 65724209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65724296 and 65724305.

It is not an unprimeable number, because it can be changed into a prime (65724331) 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, 670608 + ... + 670705.

It is an arithmetic number, because the mean of its divisors is an integer number (12742483).

Almost surely, 2^65724337 is an apocalyptic number.

It is an amenable number.

65724337 is a deficient number, since it is larger than the sum of its proper divisors (10730561).

65724337 is a wasteful number, since it uses less digits than its factorization.

65724337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341327 (or 1341320 counting only the distinct ones).

The product of its digits is 105840, while the sum is 37.

The square root of 65724337 is about 8107.0547672999. The cubic root of 65724337 is about 403.5605803766.

The spelling of 65724337 in words is "sixty-five million, seven hundred twenty-four thousand, three hundred thirty-seven".