5657969 has 2 divisors, whose sum is σ = 5657970. Its totient is φ = 5657968.

The previous prime is 5657941. The next prime is 5657989. The reversal of 5657969 is 9697565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3655744 + 2002225 = 1912^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 5657969 - 2²⁰ = 4609393 is a prime.

It is a super-2 number, since 2×5657969² = 64025226409922, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5657989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828984 + 2828985.

It is an arithmetic number, because the mean of its divisors is an integer number (2828985).

Almost surely, 2^5657969 is an apocalyptic number.

It is an amenable number.

5657969 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657969 is an equidigital number, since it uses as much as digits as its factorization.

5657969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 510300, while the sum is 47.

The square root of 5657969 is about 2378.6485658878. The cubic root of 5657969 is about 178.1914470063.

The spelling of 5657969 in words is "five million, six hundred fifty-seven thousand, nine hundred sixty-nine".