1396383777 has 24 divisors (see below), whose sum is σ = 2125905600. Its totient is φ = 880784928.

The previous prime is 1396383761. The next prime is 1396383787. The reversal of 1396383777 is 7773836931.

It is a happy number.

It is not a de Polignac number, because 1396383777 - 2⁴ = 1396383761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1396383787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138603 + ... + 148335.

It is an arithmetic number, because the mean of its divisors is an integer number (88579400).

Almost surely, 2^1396383777 is an apocalyptic number.

It is an amenable number.

1396383777 is a deficient number, since it is larger than the sum of its proper divisors (729521823).

1396383777 is a wasteful number, since it uses less digits than its factorization.

1396383777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10597 (or 10594 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The square root of 1396383777 is about 37368.2188095713. The cubic root of 1396383777 is about 1117.7249142658.

The spelling of 1396383777 in words is "one billion, three hundred ninety-six million, three hundred eighty-three thousand, seven hundred seventy-seven".