1397922 has 8 divisors (see below), whose sum is σ = 2795856. Its totient is φ = 465972.

The previous prime is 1397909. The next prime is 1397933. The reversal of 1397922 is 2297931.

It is a sphenic number, since it is the product of 3 distinct primes.

1397922 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116488 + ... + 116499.

It is an arithmetic number, because the mean of its divisors is an integer number (349482).

2^1397922 is an apocalyptic number.

1397922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1397922 is a wasteful number, since it uses less digits than its factorization.

1397922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232992.

The product of its digits is 6804, while the sum is 33.

The square root of 1397922 is about 1182.3375152637. The cubic root of 1397922 is about 111.8135183340.

Subtracting 1397922 from its reverse (2297931), we obtain a palindrome (900009).

The spelling of 1397922 in words is "one million, three hundred ninety-seven thousand, nine hundred twenty-two".