671573852 has 24 divisors (see below), whose sum is σ = 1188171600. Its totient is φ = 332107776.

The previous prime is 671573789. The next prime is 671573869. The reversal of 671573852 is 258375176.

It is a happy number.

It is a super-2 number, since 2×671573852² = 902022877380235808, which contains 22 as substring.

It is a congruent number.

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, 334283 + ... + 336285.

It is an arithmetic number, because the mean of its divisors is an integer number (49507150).

Almost surely, 2^671573852 is an apocalyptic number.

It is an amenable number.

671573852 is a deficient number, since it is larger than the sum of its proper divisors (516597748).

671573852 is a wasteful number, since it uses less digits than its factorization.

671573852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885 (or 2883 counting only the distinct ones).

The product of its digits is 352800, while the sum is 44.

The square root of 671573852 is about 25914.7419821228. The cubic root of 671573852 is about 875.7186377027.

The spelling of 671573852 in words is "six hundred seventy-one million, five hundred seventy-three thousand, eight hundred fifty-two".