671428306 has 16 divisors (see below), whose sum is σ = 1024757280. Its totient is φ = 329868000.

The previous prime is 671428301. The next prime is 671428339. The reversal of 671428306 is 603824176.

It is not an unprimeable number, because it can be changed into a prime (671428301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48681 + ... + 60931.

It is an arithmetic number, because the mean of its divisors is an integer number (64047330).

Almost surely, 2^671428306 is an apocalyptic number.

671428306 is a deficient number, since it is larger than the sum of its proper divisors (353328974).

671428306 is a wasteful number, since it uses less digits than its factorization.

671428306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 671428306 is about 25911.9336599953. The cubic root of 671428306 is about 875.6553701245.

The spelling of 671428306 in words is "six hundred seventy-one million, four hundred twenty-eight thousand, three hundred six".