1397236 has 12 divisors (see below), whose sum is σ = 2461312. Its totient is φ = 694008.

The previous prime is 1397233. The next prime is 1397251. The reversal of 1397236 is 6327931.

It is a super-3 number, since 3×1397236³ = 8183339236821240768, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1397198 and 1397207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420 + ... + 1723.

2^1397236 is an apocalyptic number.

It is an amenable number.

1397236 is a deficient number, since it is larger than the sum of its proper divisors (1064076).

1397236 is a wasteful number, since it uses less digits than its factorization.

1397236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2308 counting only the distinct ones).

The product of its digits is 6804, while the sum is 31.

The square root of 1397236 is about 1182.0473763771. The cubic root of 1397236 is about 111.7952253191.

The spelling of 1397236 in words is "one million, three hundred ninety-seven thousand, two hundred thirty-six".