1379203977 has 12 divisors (see below), whose sum is σ = 1936118480. Its totient is φ = 870899112.

The previous prime is 1379203937. The next prime is 1379204063. The reversal of 1379203977 is 7793029731.

1379203977 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1379203977 - 2⁶ = 1379203913 is a prime.

It is a super-2 number, since 2×1379203977² = 3804407220345233058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1379203907) 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, 277924 + ... + 282842.

Almost surely, 2^1379203977 is an apocalyptic number.

It is an amenable number.

1379203977 is a deficient number, since it is larger than the sum of its proper divisors (556914503).

1379203977 is an frugal number, since it uses more digits than its factorization.

1379203977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860 (or 4941 counting only the distinct ones).

The product of its (nonzero) digits is 500094, while the sum is 48.

The square root of 1379203977 is about 37137.6355870968. The cubic root of 1379203977 is about 1113.1221724039.

The spelling of 1379203977 in words is "one billion, three hundred seventy-nine million, two hundred three thousand, nine hundred seventy-seven".