1597916 has 12 divisors (see below), whose sum is σ = 2830632. Its totient is φ = 789168.

The previous prime is 1597913. The next prime is 1597927. The reversal of 1597916 is 6197951.

It is a self number, because there is not a number n which added to its sum of digits gives 1597916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597913) 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, 2075 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (235886).

2^1597916 is an apocalyptic number.

It is an amenable number.

1597916 is a deficient number, since it is larger than the sum of its proper divisors (1232716).

1597916 is a wasteful number, since it uses less digits than its factorization.

1597916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900 (or 4898 counting only the distinct ones).

The product of its digits is 17010, while the sum is 38.

The square root of 1597916 is about 1264.0870223209. The cubic root of 1597916 is about 116.9099070240.

The spelling of 1597916 in words is "one million, five hundred ninety-seven thousand, nine hundred sixteen".