65983738 has 4 divisors (see below), whose sum is σ = 98975610. Its totient is φ = 32991868.

The previous prime is 65983733. The next prime is 65983741. The reversal of 65983738 is 83738956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48902049 + 17081689 = 6993^2 + 4133^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 65983691 and 65983700.

It is not an unprimeable number, because it can be changed into a prime (65983733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16495933 + ... + 16495936.

Almost surely, 2^65983738 is an apocalyptic number.

65983738 is a deficient number, since it is larger than the sum of its proper divisors (32991872).

65983738 is a wasteful number, since it uses less digits than its factorization.

65983738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32991871.

The product of its digits is 1088640, while the sum is 49.

The square root of 65983738 is about 8123.0374860639. The cubic root of 65983738 is about 404.0908081008.

The spelling of 65983738 in words is "sixty-five million, nine hundred eighty-three thousand, seven hundred thirty-eight".