1593641 has 4 divisors (see below), whose sum is σ = 1821312. Its totient is φ = 1365972.

The previous prime is 1593619. The next prime is 1593643. The reversal of 1593641 is 1463951.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1463951 = 1039 ⋅1409.

It is a cyclic number.

It is not a de Polignac number, because 1593641 - 2¹⁸ = 1331497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1593643) 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, 113825 + ... + 113838.

It is an arithmetic number, because the mean of its divisors is an integer number (455328).

2^1593641 is an apocalyptic number.

It is an amenable number.

1593641 is a deficient number, since it is larger than the sum of its proper divisors (227671).

1593641 is an equidigital number, since it uses as much as digits as its factorization.

1593641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227670.

The product of its digits is 3240, while the sum is 29.

The square root of 1593641 is about 1262.3949461242. The cubic root of 1593641 is about 116.8055552262.

The spelling of 1593641 in words is "one million, five hundred ninety-three thousand, six hundred forty-one".