57770866 has 4 divisors (see below), whose sum is σ = 86656302. Its totient is φ = 28885432.

The previous prime is 57770863. The next prime is 57770891. The reversal of 57770866 is 66807775.

57770866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41538025 + 16232841 = 6445^2 + 4029^2 .

It is not an unprimeable number, because it can be changed into a prime (57770863) 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, 14442715 + ... + 14442718.

Almost surely, 2^57770866 is an apocalyptic number.

57770866 is a deficient number, since it is larger than the sum of its proper divisors (28885436).

57770866 is a wasteful number, since it uses less digits than its factorization.

57770866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28885435.

The product of its (nonzero) digits is 493920, while the sum is 46.

The square root of 57770866 is about 7600.7148348034. The cubic root of 57770866 is about 386.5772502648.

The spelling of 57770866 in words is "fifty-seven million, seven hundred seventy thousand, eight hundred sixty-six".