2568393 has 6 divisors (see below), whose sum is σ = 3709914. Its totient is φ = 1712256.

The previous prime is 2568389. The next prime is 2568403. The reversal of 2568393 is 3938652.

2568393 is a `hidden beast` number, since 2 + 568 + 3 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1375929 + 1192464 = 1173^2 + 1092^2 .

It is not a de Polignac number, because 2568393 - 2² = 2568389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2568323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142680 + ... + 142697.

It is an arithmetic number, because the mean of its divisors is an integer number (618319).

2^2568393 is an apocalyptic number.

It is an amenable number.

2568393 is a deficient number, since it is larger than the sum of its proper divisors (1141521).

2568393 is a wasteful number, since it uses less digits than its factorization.

2568393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285383 (or 285380 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2568393 is about 1602.6206662838. The cubic root of 2568393 is about 136.9474108632.

It can be divided in two parts, 256 and 8393, that added together give a square (8649 = 93²).

The spelling of 2568393 in words is "two million, five hundred sixty-eight thousand, three hundred ninety-three".