671598396 has 288 divisors, whose sum is σ = 2230824960. Its totient is φ = 165722112.

The previous prime is 671598383. The next prime is 671598427. The reversal of 671598396 is 693895176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3011541 + ... + 3011763.

It is an arithmetic number, because the mean of its divisors is an integer number (7745920).

Almost surely, 2^671598396 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 671598396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115412480).

671598396 is an abundant number, since it is smaller than the sum of its proper divisors (1559226564).

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

671598396 is a wasteful number, since it uses less digits than its factorization.

671598396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 308 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 671598396 is about 25915.2155306492. The cubic root of 671598396 is about 875.7293058650.

It can be divided in two parts, 6715 and 98396, that added together give a triangular number (105111 = T₄₅₈).

The spelling of 671598396 in words is "six hundred seventy-one million, five hundred ninety-eight thousand, three hundred ninety-six".