57028667 has 2 divisors, whose sum is σ = 57028668. Its totient is φ = 57028666.

The previous prime is 57028649. The next prime is 57028681. The reversal of 57028667 is 76682075.

It is a happy number.

57028667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57028667 - 2⁶ = 57028603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57028607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28514333 + 28514334.

It is an arithmetic number, because the mean of its divisors is an integer number (28514334).

Almost surely, 2^57028667 is an apocalyptic number.

57028667 is a deficient number, since it is larger than the sum of its proper divisors (1).

57028667 is an equidigital number, since it uses as much as digits as its factorization.

57028667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 57028667 is about 7551.7327150794. The cubic root of 57028667 is about 384.9146198481.

The spelling of 57028667 in words is "fifty-seven million, twenty-eight thousand, six hundred sixty-seven".