1397968 has 60 divisors (see below), whose sum is σ = 3267648. Its totient is φ = 574080.

The previous prime is 1397959. The next prime is 1397983. The reversal of 1397968 is 8697931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29721 + ... + 29767.

2^1397968 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 1397968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633824).

1397968 is an abundant number, since it is smaller than the sum of its proper divisors (1869680).

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

1397968 is a wasteful number, since it uses less digits than its factorization.

1397968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 73 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 1397968 is about 1182.3569680938. The cubic root of 1397968 is about 111.8147447652.

The spelling of 1397968 in words is "one million, three hundred ninety-seven thousand, nine hundred sixty-eight".