1397000 has 64 divisors (see below), whose sum is σ = 3594240. Its totient is φ = 504000.

The previous prime is 1396999. The next prime is 1397021. The reversal of 1397000 is 7931.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10937 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2^1397000 is an apocalyptic number.

1397000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797120).

1397000 is an abundant number, since it is smaller than the sum of its proper divisors (2197240).

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

1397000 is a wasteful number, since it uses less digits than its factorization.

1397000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 1397000 is about 1181.9475453674. The cubic root of 1397000 is about 111.7889307111.

The spelling of 1397000 in words is "one million, three hundred ninety-seven thousand".