1389053763 has 6 divisors (see below), whose sum is σ = 2006411004. Its totient is φ = 926035836.

The previous prime is 1389053717. The next prime is 1389053779. The reversal of 1389053763 is 3673509831.

It is not a de Polignac number, because 1389053763 - 2⁸ = 1389053507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1389053863) 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, 77169645 + ... + 77169662.

It is an arithmetic number, because the mean of its divisors is an integer number (334401834).

Almost surely, 2^1389053763 is an apocalyptic number.

1389053763 is a deficient number, since it is larger than the sum of its proper divisors (617357241).

1389053763 is a wasteful number, since it uses less digits than its factorization.

1389053763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154339313 (or 154339310 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 1389053763 is about 37270.0115776746. The cubic root of 1389053763 is about 1115.7657305885.

The spelling of 1389053763 in words is "one billion, three hundred eighty-nine million, fifty-three thousand, seven hundred sixty-three".