1396857 has 16 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 725520.

The previous prime is 1396849. The next prime is 1396867. The reversal of 1396857 is 7586931.

It is not a de Polignac number, because 1396857 - 2³ = 1396849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1396817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793 + ... + 3254.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

2^1396857 is an apocalyptic number.

It is an amenable number.

1396857 is a deficient number, since it is larger than the sum of its proper divisors (925575).

1396857 is a wasteful number, since it uses less digits than its factorization.

1396857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068.

The product of its digits is 45360, while the sum is 39.

The square root of 1396857 is about 1181.8870504409. The cubic root of 1396857 is about 111.7851162605.

It can be divided in two parts, 139 and 6857, that added together give a palindrome (6996).

The spelling of 1396857 in words is "one million, three hundred ninety-six thousand, eight hundred fifty-seven".