671604552 has 192 divisors, whose sum is σ = 1996488000. Its totient is φ = 203254272.

The previous prime is 671604547. The next prime is 671604613. The reversal of 671604552 is 255406176.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4277658 + ... + 4277814.

It is an arithmetic number, because the mean of its divisors is an integer number (10398375).

Almost surely, 2^671604552 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 671604552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998244000).

671604552 is an abundant number, since it is smaller than the sum of its proper divisors (1324883448).

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

671604552 is a wasteful number, since it uses less digits than its factorization.

671604552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 671604552 is about 25915.3343023006. The cubic root of 671604552 is about 875.7319815578.

The spelling of 671604552 in words is "six hundred seventy-one million, six hundred four thousand, five hundred fifty-two".