1396331983 has 8 divisors (see below), whose sum is σ = 1470183920. Its totient is φ = 1322516160.

The previous prime is 1396331971. The next prime is 1396332019. The reversal of 1396331983 is 3891336931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1396331983 - 2⁹ = 1396331471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396331903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112213 + ... + 124033.

It is an arithmetic number, because the mean of its divisors is an integer number (183772990).

Almost surely, 2^1396331983 is an apocalyptic number.

1396331983 is a deficient number, since it is larger than the sum of its proper divisors (73851937).

1396331983 is a wasteful number, since it uses less digits than its factorization.

1396331983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18057.

The product of its digits is 314928, while the sum is 46.

The square root of 1396331983 is about 37367.5257810843. The cubic root of 1396331983 is about 1117.7110947221.

The spelling of 1396331983 in words is "one billion, three hundred ninety-six million, three hundred thirty-one thousand, nine hundred eighty-three".