1383657764 has 6 divisors (see below), whose sum is σ = 2421401094. Its totient is φ = 691828880.

The previous prime is 1383657749. The next prime is 1383657797. The reversal of 1383657764 is 4677563831.

It can be written as a sum of positive squares in only one way, i.e., 1115025664 + 268632100 = 33392^2 + 16390^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172957217 + ... + 172957224.

It is an arithmetic number, because the mean of its divisors is an integer number (403566849).

Almost surely, 2^1383657764 is an apocalyptic number.

It is an amenable number.

1383657764 is a deficient number, since it is larger than the sum of its proper divisors (1037743330).

1383657764 is a wasteful number, since it uses less digits than its factorization.

1383657764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345914445 (or 345914443 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 50.

The square root of 1383657764 is about 37197.5505107527. The cubic root of 1383657764 is about 1114.3190662288.

The spelling of 1383657764 in words is "one billion, three hundred eighty-three million, six hundred fifty-seven thousand, seven hundred sixty-four".