1596661 has 8 divisors (see below), whose sum is σ = 1789344. Its totient is φ = 1411920.

The previous prime is 1596659. The next prime is 1596667. The reversal of 1596661 is 1666951.

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

It is not a de Polignac number, because 1596661 - 2¹ = 1596659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1596667) 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, 1555 + ... + 2368.

It is an arithmetic number, because the mean of its divisors is an integer number (223668).

2^1596661 is an apocalyptic number.

1596661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1596661 is a deficient number, since it is larger than the sum of its proper divisors (192683).

1596661 is a wasteful number, since it uses less digits than its factorization.

1596661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971.

The product of its digits is 9720, while the sum is 34.

The square root of 1596661 is about 1263.5905191161. The cubic root of 1596661 is about 116.8792920726.

The spelling of 1596661 in words is "one million, five hundred ninety-six thousand, six hundred sixty-one".