865074866 has 4 divisors (see below), whose sum is σ = 1297612302. Its totient is φ = 432537432.

The previous prime is 865074853. The next prime is 865074877. The reversal of 865074866 is 668470568.

It is a happy number.

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., 860542225 + 4532641 = 29335^2 + 2129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216268715 + ... + 216268718.

Almost surely, 2^865074866 is an apocalyptic number.

865074866 is a deficient number, since it is larger than the sum of its proper divisors (432537436).

865074866 is a wasteful number, since it uses less digits than its factorization.

865074866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432537435.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 865074866 is about 29412.1550723506. The cubic root of 865074866 is about 952.8354312625.

The spelling of 865074866 in words is "eight hundred sixty-five million, seventy-four thousand, eight hundred sixty-six".