670189892 has 24 divisors (see below), whose sum is σ = 1186236576. Its totient is φ = 331280768.

The previous prime is 670189867. The next prime is 670189937. The reversal of 670189892 is 298981076.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 670189892.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198563 + ... + 201909.

It is an arithmetic number, because the mean of its divisors is an integer number (49426524).

Almost surely, 2^670189892 is an apocalyptic number.

It is an amenable number.

670189892 is a deficient number, since it is larger than the sum of its proper divisors (516046684).

670189892 is a wasteful number, since it uses less digits than its factorization.

670189892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 670189892 is about 25888.0260352156. The cubic root of 670189892 is about 875.1166721158.

The spelling of 670189892 in words is "six hundred seventy million, one hundred eighty-nine thousand, eight hundred ninety-two".