1377992983 has 4 divisors (see below), whose sum is σ = 1378067968. Its totient is φ = 1377918000.

The previous prime is 1377992969. The next prime is 1377992999. The reversal of 1377992983 is 3892997731.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1377992983 - 2¹⁷ = 1377861911 is a prime.

It is a super-2 number, since 2×1377992983² = 3797729322394476578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377999983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10858 + ... + 53608.

It is an arithmetic number, because the mean of its divisors is an integer number (344516992).

Almost surely, 2^1377992983 is an apocalyptic number.

1377992983 is a deficient number, since it is larger than the sum of its proper divisors (74985).

1377992983 is an equidigital number, since it uses as much as digits as its factorization.

1377992983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74984.

The product of its digits is 5143824, while the sum is 58.

The square root of 1377992983 is about 37121.3278722623. The cubic root of 1377992983 is about 1112.7962890165.

The spelling of 1377992983 in words is "one billion, three hundred seventy-seven million, nine hundred ninety-two thousand, nine hundred eighty-three".