1397936 has 20 divisors (see below), whose sum is σ = 2775864. Its totient is φ = 681600.

The previous prime is 1397933. The next prime is 1397939. The reversal of 1397936 is 6397931.

It is an interprime number because it is at equal distance from previous prime (1397933) and next prime (1397939).

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1397936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397933) 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, 410 + ... + 1721.

2^1397936 is an apocalyptic number.

1397936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1397936 is a deficient number, since it is larger than the sum of its proper divisors (1377928).

1397936 is a wasteful number, since it uses less digits than its factorization.

1397936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2174 counting only the distinct ones).

The product of its digits is 30618, while the sum is 38.

The square root of 1397936 is about 1182.3434357242. The cubic root of 1397936 is about 111.8138915986.

The spelling of 1397936 in words is "one million, three hundred ninety-seven thousand, nine hundred thirty-six".