57067889 has 2 divisors, whose sum is σ = 57067890. Its totient is φ = 57067888.

The previous prime is 57067873. The next prime is 57067891. The reversal of 57067889 is 98876075.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44782864 + 12285025 = 6692^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 57067889 - 2⁴ = 57067873 is a prime.

It is a super-4 number, since 4×57067889⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

Together with 57067891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57067819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28533944 + 28533945.

It is an arithmetic number, because the mean of its divisors is an integer number (28533945).

Almost surely, 2^57067889 is an apocalyptic number.

It is an amenable number.

57067889 is a deficient number, since it is larger than the sum of its proper divisors (1).

57067889 is an equidigital number, since it uses as much as digits as its factorization.

57067889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 57067889 is about 7554.3291561859. The cubic root of 57067889 is about 385.0028425045.

The spelling of 57067889 in words is "fifty-seven million, sixty-seven thousand, eight hundred eighty-nine".