39393764 has 18 divisors (see below), whose sum is σ = 72761094. Its totient is φ = 18659520.

The previous prime is 39393763. The next prime is 39393773. The reversal of 39393764 is 46739393.

It can be written as a sum of positive squares in only one way, i.e., 36966400 + 2427364 = 6080^2 + 1558^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (39393763) 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, 12197 + ... + 15084.

It is an arithmetic number, because the mean of its divisors is an integer number (4042283).

Almost surely, 2^39393764 is an apocalyptic number.

It is an amenable number.

39393764 is a deficient number, since it is larger than the sum of its proper divisors (33367330).

39393764 is a wasteful number, since it uses less digits than its factorization.

39393764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27323 (or 27302 counting only the distinct ones).

The product of its digits is 367416, while the sum is 44.

The square root of 39393764 is about 6276.4451722293. The cubic root of 39393764 is about 340.2586382672.

The spelling of 39393764 in words is "thirty-nine million, three hundred ninety-three thousand, seven hundred sixty-four".