671873746 has 16 divisors (see below), whose sum is σ = 1053388224. Its totient is φ = 320793264.

The previous prime is 671873737. The next prime is 671873747. The reversal of 671873746 is 647378176.

671873746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 671873746.

It is not an unprimeable number, because it can be changed into a prime (671873747) 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, 16285 + ... + 40111.

It is an arithmetic number, because the mean of its divisors is an integer number (65836764).

Almost surely, 2^671873746 is an apocalyptic number.

671873746 is a deficient number, since it is larger than the sum of its proper divisors (381514478).

671873746 is a wasteful number, since it uses less digits than its factorization.

671873746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24465.

The product of its digits is 1185408, while the sum is 49.

The square root of 671873746 is about 25920.5275023484. The cubic root of 671873746 is about 875.8489701957.

The spelling of 671873746 in words is "six hundred seventy-one million, eight hundred seventy-three thousand, seven hundred forty-six".