57998669 has 2 divisors, whose sum is σ = 57998670. Its totient is φ = 57998668.

The previous prime is 57998639. The next prime is 57998671. The reversal of 57998669 is 96689975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56821444 + 1177225 = 7538^2 + 1085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57998669 is a prime.

It is a super-2 number, since 2×57998669² = 6727691211543122, which contains 22 as substring.

Together with 57998671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57998609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28999334 + 28999335.

It is an arithmetic number, because the mean of its divisors is an integer number (28999335).

Almost surely, 2^57998669 is an apocalyptic number.

It is an amenable number.

57998669 is a deficient number, since it is larger than the sum of its proper divisors (1).

57998669 is an equidigital number, since it uses as much as digits as its factorization.

57998669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 59.

The square root of 57998669 is about 7615.6857209315. The cubic root of 57998669 is about 387.0847030420.

The spelling of 57998669 in words is "fifty-seven million, nine hundred ninety-eight thousand, six hundred sixty-nine".