671672712 has 32 divisors (see below), whose sum is σ = 1737086400. Its totient is φ = 216170304.

The previous prime is 671672707. The next prime is 671672747. The reversal of 671672712 is 217276176.

It is a super-2 number, since 2×671672712² = 902288464090869888, which contains 22 as substring.

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, 481828 + ... + 483219.

It is an arithmetic number, because the mean of its divisors is an integer number (54283950).

Almost surely, 2^671672712 is an apocalyptic number.

It is an amenable number.

671672712 is an abundant number, since it is smaller than the sum of its proper divisors (1065413688).

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

671672712 is a wasteful number, since it uses less digits than its factorization.

671672712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965085 (or 965081 counting only the distinct ones).

The product of its digits is 49392, while the sum is 39.

The square root of 671672712 is about 25916.6493204658. The cubic root of 671672712 is about 875.7616060705.

The spelling of 671672712 in words is "six hundred seventy-one million, six hundred seventy-two thousand, seven hundred twelve".