1397488 has 20 divisors (see below), whose sum is σ = 2850760. Its totient is φ = 661824.

The previous prime is 1397483. The next prime is 1397491. The reversal of 1397488 is 8847931.

It is a self number, because there is not a number n which added to its sum of digits gives 1397488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397483) 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, 1995 + ... + 2602.

It is an arithmetic number, because the mean of its divisors is an integer number (142538).

2^1397488 is an apocalyptic number.

It is an amenable number.

1397488 is an abundant number, since it is smaller than the sum of its proper divisors (1453272).

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

1397488 is a wasteful number, since it uses less digits than its factorization.

1397488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624 (or 4618 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 1397488 is about 1182.1539662836. The cubic root of 1397488 is about 111.8019458978.

The spelling of 1397488 in words is "one million, three hundred ninety-seven thousand, four hundred eighty-eight".