57889969 has 2 divisors, whose sum is σ = 57889970. Its totient is φ = 57889968.

The previous prime is 57889957. The next prime is 57889987. The reversal of 57889969 is 96998875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53479969 + 4410000 = 7313^2 + 2100^2 .

It is a cyclic number.

It is not a de Polignac number, because 57889969 - 2⁷ = 57889841 is a prime.

It is a super-2 number, since 2×57889969² = 6702497021641922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57889669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28944984 + 28944985.

It is an arithmetic number, because the mean of its divisors is an integer number (28944985).

Almost surely, 2^57889969 is an apocalyptic number.

It is an amenable number.

57889969 is a deficient number, since it is larger than the sum of its proper divisors (1).

57889969 is an equidigital number, since it uses as much as digits as its factorization.

57889969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 61.

The square root of 57889969 is about 7608.5457874682. The cubic root of 57889969 is about 386.8427295540.

The spelling of 57889969 in words is "fifty-seven million, eight hundred eighty-nine thousand, nine hundred sixty-nine".