1596641 has 2 divisors, whose sum is σ = 1596642. Its totient is φ = 1596640.

The previous prime is 1596631. The next prime is 1596649. The reversal of 1596641 is 1466951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 108241 = 1220^2 + 329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1596641 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1596598 and 1596607.

It is not a weakly prime, because it can be changed into another prime (1596649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798320 + 798321.

It is an arithmetic number, because the mean of its divisors is an integer number (798321).

2^1596641 is an apocalyptic number.

It is an amenable number.

1596641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1596641 is an equidigital number, since it uses as much as digits as its factorization.

1596641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 1596641 is about 1263.5826051351. The cubic root of 1596641 is about 116.8788040551.

The spelling of 1596641 in words is "one million, five hundred ninety-six thousand, six hundred forty-one".