57869489 has 2 divisors, whose sum is σ = 57869490. Its totient is φ = 57869488.

The previous prime is 57869437. The next prime is 57869503. The reversal of 57869489 is 98496875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 8025889 = 7060^2 + 2833^2 .

It is a cyclic number.

It is not a de Polignac number, because 57869489 - 2⁸ = 57869233 is a prime.

It is a super-2 number, since 2×57869489² = 6697755514242242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57869429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28934744 + 28934745.

It is an arithmetic number, because the mean of its divisors is an integer number (28934745).

Almost surely, 2^57869489 is an apocalyptic number.

It is an amenable number.

57869489 is a deficient number, since it is larger than the sum of its proper divisors (1).

57869489 is an equidigital number, since it uses as much as digits as its factorization.

57869489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 56.

The square root of 57869489 is about 7607.1998133347. The cubic root of 57869489 is about 386.7971057975.

The spelling of 57869489 in words is "fifty-seven million, eight hundred sixty-nine thousand, four hundred eighty-nine".