1589381 has 4 divisors (see below), whose sum is σ = 1682892. Its totient is φ = 1495872.

The previous prime is 1589377. The next prime is 1589387. The reversal of 1589381 is 1839851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 538756 + 1050625 = 734^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1589381 - 2² = 1589377 is a prime.

It is a super-4 number, since 4×1589381⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1589387) 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, 46730 + ... + 46763.

It is an arithmetic number, because the mean of its divisors is an integer number (420723).

2^1589381 is an apocalyptic number.

It is an amenable number.

1589381 is a deficient number, since it is larger than the sum of its proper divisors (93511).

1589381 is an equidigital number, since it uses as much as digits as its factorization.

1589381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93510.

The product of its digits is 8640, while the sum is 35.

The square root of 1589381 is about 1260.7065479325. The cubic root of 1589381 is about 116.7013837723.

The spelling of 1589381 in words is "one million, five hundred eighty-nine thousand, three hundred eighty-one".