1589997 has 4 divisors (see below), whose sum is σ = 2120000. Its totient is φ = 1059996.

The previous prime is 1589981. The next prime is 1590019. The reversal of 1589997 is 7999851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1589997 - 2⁴ = 1589981 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1589297) 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, 264997 + ... + 265002.

It is an arithmetic number, because the mean of its divisors is an integer number (530000).

2^1589997 is an apocalyptic number.

It is an amenable number.

1589997 is a deficient number, since it is larger than the sum of its proper divisors (530003).

1589997 is an equidigital number, since it uses as much as digits as its factorization.

1589997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530002.

The product of its digits is 204120, while the sum is 48.

The square root of 1589997 is about 1260.9508317139. The cubic root of 1589997 is about 116.7164585650.

The spelling of 1589997 in words is "one million, five hundred eighty-nine thousand, nine hundred ninety-seven".