671854072 has 32 divisors (see below), whose sum is σ = 1302537600. Its totient is φ = 324547200.

The previous prime is 671854039. The next prime is 671854087. The reversal of 671854072 is 270458176.

671854072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 173922 + ... + 177742.

It is an arithmetic number, because the mean of its divisors is an integer number (40704300).

Almost surely, 2^671854072 is an apocalyptic number.

671854072 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

671854072 is a deficient number, since it is larger than the sum of its proper divisors (630683528).

671854072 is a wasteful number, since it uses less digits than its factorization.

671854072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567 (or 4563 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 671854072 is about 25920.1479934047. The cubic root of 671854072 is about 875.8404211586.

The spelling of 671854072 in words is "six hundred seventy-one million, eight hundred fifty-four thousand, seventy-two".