671885552 has 40 divisors (see below), whose sum is σ = 1403597664. Its totient is φ = 309729024.

The previous prime is 671885519. The next prime is 671885563. The reversal of 671885552 is 255588176.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 671885497 and 671885506.

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, 250973 + ... + 253635.

Almost surely, 2^671885552 is an apocalyptic number.

It is an amenable number.

671885552 is an abundant number, since it is smaller than the sum of its proper divisors (731712112).

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

671885552 is a wasteful number, since it uses less digits than its factorization.

671885552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897 (or 3891 counting only the distinct ones).

The product of its digits is 672000, while the sum is 47.

The square root of 671885552 is about 25920.7552359109. The cubic root of 671885552 is about 875.8541002332.

The spelling of 671885552 in words is "six hundred seventy-one million, eight hundred eighty-five thousand, five hundred fifty-two".