671400708 has 72 divisors (see below), whose sum is σ = 1735147680. Its totient is φ = 200390400.

The previous prime is 671400689. The next prime is 671400757. The reversal of 671400708 is 807004176.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 664908 + ... + 665916.

Almost surely, 2^671400708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671400708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867573840).

671400708 is an abundant number, since it is smaller than the sum of its proper divisors (1063746972).

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

671400708 is a wasteful number, since it uses less digits than its factorization.

671400708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 671400708 is about 25911.4011199703. The cubic root of 671400708 is about 875.6433724832.

The spelling of 671400708 in words is "six hundred seventy-one million, four hundred thousand, seven hundred eight".