1396917 has 12 divisors (see below), whose sum is σ = 2028780. Its totient is φ = 926208.

The previous prime is 1396909. The next prime is 1396939. The reversal of 1396917 is 7196931.

It can be written as a sum of positive squares in 2 ways, for example, as 820836 + 576081 = 906^2 + 759^2 .

It is not a de Polignac number, because 1396917 - 2³ = 1396909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396987) 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, 2133 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (169065).

2^1396917 is an apocalyptic number.

It is an amenable number.

1396917 is a deficient number, since it is larger than the sum of its proper divisors (631863).

1396917 is a wasteful number, since it uses less digits than its factorization.

1396917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 849 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 1396917 is about 1181.9124333046. The cubic root of 1396917 is about 111.7867167610.

It can be divided in two parts, 139 and 6917, that added together give a square (7056 = 84²).

The spelling of 1396917 in words is "one million, three hundred ninety-six thousand, nine hundred seventeen".