1396617331 has 4 divisors (see below), whose sum is σ = 1407278664. Its totient is φ = 1385956000.

The previous prime is 1396617323. The next prime is 1396617347. The reversal of 1396617331 is 1337166931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1396617331 - 2³ = 1396617323 is a prime.

It is a super-2 number, since 2×1396617331² = 3901079938499127122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396617311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330470 + ... + 5330731.

It is an arithmetic number, because the mean of its divisors is an integer number (351819666).

Almost surely, 2^1396617331 is an apocalyptic number.

1396617331 is a deficient number, since it is larger than the sum of its proper divisors (10661333).

1396617331 is a wasteful number, since it uses less digits than its factorization.

1396617331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661332.

The product of its digits is 61236, while the sum is 40.

The square root of 1396617331 is about 37371.3437141348. The cubic root of 1396617331 is about 1117.7872263074.

The spelling of 1396617331 in words is "one billion, three hundred ninety-six million, six hundred seventeen thousand, three hundred thirty-one".