671943627 has 16 divisors (see below), whose sum is σ = 996428160. Its totient is φ = 447532200.

The previous prime is 671943577. The next prime is 671943641. The reversal of 671943627 is 726349176.

671943627 is a `hidden beast` number, since 6 + 7 + 19 + 4 + 3 + 627 = 666.

It is not a de Polignac number, because 671943627 - 2¹⁶ = 671878091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671943647) 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 15 ways as a sum of consecutive naturals, for example, 18052 + ... + 40862.

It is an arithmetic number, because the mean of its divisors is an integer number (62276760).

Almost surely, 2^671943627 is an apocalyptic number.

671943627 is a deficient number, since it is larger than the sum of its proper divisors (324484533).

671943627 is a wasteful number, since it uses less digits than its factorization.

671943627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911 (or 23905 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 671943627 is about 25921.8754529837. The cubic root of 671943627 is about 875.8793345712.

The spelling of 671943627 in words is "six hundred seventy-one million, nine hundred forty-three thousand, six hundred twenty-seven".