790640866 has 8 divisors (see below), whose sum is σ = 1187983440. Its totient is φ = 394646388.

The previous prime is 790640861. The next prime is 790640897. The reversal of 790640866 is 668046097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×790640866² = 1250225957978459912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (790640861) 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 in 3 ways as a sum of consecutive naturals, for example, 335556 + ... + 337903.

It is an arithmetic number, because the mean of its divisors is an integer number (148497930).

Almost surely, 2^790640866 is an apocalyptic number.

790640866 is a deficient number, since it is larger than the sum of its proper divisors (397342574).

790640866 is a wasteful number, since it uses less digits than its factorization.

790640866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674048.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 790640866 is about 28118.3368284826. The cubic root of 790640866 is about 924.6834528253.

The spelling of 790640866 in words is "seven hundred ninety million, six hundred forty thousand, eight hundred sixty-six".