671434912 has 24 divisors (see below), whose sum is σ = 1367471700. Its totient is φ = 324140544.

The previous prime is 671434909. The next prime is 671434919. The reversal of 671434912 is 219434176.

It can be written as a sum of positive squares in 2 ways, for example, as 665846416 + 5588496 = 25804^2 + 2364^2 .

It is not an unprimeable number, because it can be changed into a prime (671434919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360837 + ... + 362692.

Almost surely, 2^671434912 is an apocalyptic number.

It is an amenable number.

671434912 is an abundant number, since it is smaller than the sum of its proper divisors (696036788).

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

671434912 is a wasteful number, since it uses less digits than its factorization.

671434912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723568 (or 723560 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 671434912 is about 25912.0611299063. The cubic root of 671434912 is about 875.6582418932.

The spelling of 671434912 in words is "six hundred seventy-one million, four hundred thirty-four thousand, nine hundred twelve".