1397836 has 12 divisors (see below), whose sum is σ = 2668680. Its totient is φ = 635360.

The previous prime is 1397833. The next prime is 1397839. The reversal of 1397836 is 6387931.

It is an interprime number because it is at equal distance from previous prime (1397833) and next prime (1397839).

It is a junction number, because it is equal to n+sod(n) for n = 1397795 and 1397804.

It is not an unprimeable number, because it can be changed into a prime (1397833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15841 + ... + 15928.

It is an arithmetic number, because the mean of its divisors is an integer number (222390).

2^1397836 is an apocalyptic number.

It is an amenable number.

1397836 is a deficient number, since it is larger than the sum of its proper divisors (1270844).

1397836 is a wasteful number, since it uses less digits than its factorization.

1397836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31784 (or 31782 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 1397836 is about 1182.3011460707. The cubic root of 1397836 is about 111.8112253688.

The spelling of 1397836 in words is "one million, three hundred ninety-seven thousand, eight hundred thirty-six".