1397976 has 32 divisors (see below), whose sum is σ = 3609600. Its totient is φ = 450720.

The previous prime is 1397959. The next prime is 1397983. The reversal of 1397976 is 6797931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 1683.

It is an arithmetic number, because the mean of its divisors is an integer number (112800).

2^1397976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1804800).

1397976 is an abundant number, since it is smaller than the sum of its proper divisors (2211624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397976 is a wasteful number, since it uses less digits than its factorization.

1397976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1915 counting only the distinct ones).

The product of its digits is 71442, while the sum is 42.

The square root of 1397976 is about 1182.3603511620. The cubic root of 1397976 is about 111.8149580549.

The spelling of 1397976 in words is "one million, three hundred ninety-seven thousand, nine hundred seventy-six".