671428324 has 12 divisors (see below), whose sum is σ = 1342856704. Its totient is φ = 287754984.

The previous prime is 671428301. The next prime is 671428339. The reversal of 671428324 is 423824176.

671428324 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11989764 + ... + 11989819.

Almost surely, 2^671428324 is an apocalyptic number.

It is an amenable number.

671428324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671428324 is a wasteful number, since it uses less digits than its factorization.

671428324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979594 (or 23979592 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 671428324 is about 25911.9340073257. The cubic root of 671428324 is about 875.6553779495.

It can be divided in two parts, 67142 and 8324, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 671428324 in words is "six hundred seventy-one million, four hundred twenty-eight thousand, three hundred twenty-four".