1397930 has 16 divisors (see below), whose sum is σ = 2575584. Its totient is φ = 546000.

The previous prime is 1397909. The next prime is 1397933. The reversal of 1397930 is 397931.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1196 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (160974).

2^1397930 is an apocalyptic number.

1397930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1397930 is a deficient number, since it is larger than the sum of its proper divisors (1177654).

1397930 is a wasteful number, since it uses less digits than its factorization.

1397930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 1397930 is about 1182.3408983876. The cubic root of 1397930 is about 111.8137316284.

Subtracting from 1397930 its reverse (397931), we obtain a palindrome (999999).

The spelling of 1397930 in words is "one million, three hundred ninety-seven thousand, nine hundred thirty".