671884520 has 32 divisors (see below), whose sum is σ = 1519672320. Its totient is φ = 267343680.

The previous prime is 671884519. The next prime is 671884529. The reversal of 671884520 is 25488176.

It is not an unprimeable number, because it can be changed into a prime (671884529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36332 + ... + 51611.

It is an arithmetic number, because the mean of its divisors is an integer number (47489760).

Almost surely, 2^671884520 is an apocalyptic number.

It is an amenable number.

671884520 is an abundant number, since it is smaller than the sum of its proper divisors (847787800).

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

671884520 is a wasteful number, since it uses less digits than its factorization.

671884520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88145 (or 88141 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 671884520 is about 25920.7353290758. The cubic root of 671884520 is about 875.8536518027.

The spelling of 671884520 in words is "six hundred seventy-one million, eight hundred eighty-four thousand, five hundred twenty".