65244736 has 14 divisors (see below), whose sum is σ = 129470150. Its totient is φ = 32622336.

The previous prime is 65244709. The next prime is 65244761. The reversal of 65244736 is 63744256.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 3779136 = 7840^2 + 1944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65244695 and 65244704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509661 + ... + 509788.

Almost surely, 2^65244736 is an apocalyptic number.

It is an amenable number.

65244736 is a deficient number, since it is larger than the sum of its proper divisors (64225414).

65244736 is a wasteful number, since it uses less digits than its factorization.

65244736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019461 (or 1019451 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 65244736 is about 8077.4213707098. The cubic root of 65244736 is about 402.5765676128.

The spelling of 65244736 in words is "sixty-five million, two hundred forty-four thousand, seven hundred thirty-six".