1377323997 has 12 divisors (see below), whose sum is σ = 2136257856. Its totient is φ = 787042200.

The previous prime is 1377323989. The next prime is 1377324077. The reversal of 1377323997 is 7993237731.

It is not a de Polignac number, because 1377323997 - 2³ = 1377323989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377323977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4684629 + ... + 4684922.

It is an arithmetic number, because the mean of its divisors is an integer number (178021488).

Almost surely, 2^1377323997 is an apocalyptic number.

It is an amenable number.

1377323997 is a deficient number, since it is larger than the sum of its proper divisors (758933859).

1377323997 is an equidigital number, since it uses as much as digits as its factorization.

1377323997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369568 (or 9369561 counting only the distinct ones).

The product of its digits is 1500282, while the sum is 51.

The square root of 1377323997 is about 37112.3159746195. The cubic root of 1377323997 is about 1112.6161803003.

The spelling of 1377323997 in words is "one billion, three hundred seventy-seven million, three hundred twenty-three thousand, nine hundred ninety-seven".