671274760 has 96 divisors (see below), whose sum is σ = 1647000000. Its totient is φ = 246115584.

The previous prime is 671274749. The next prime is 671274761. The reversal of 671274760 is 67472176.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (671274761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1344991 + ... + 1345489.

It is an arithmetic number, because the mean of its divisors is an integer number (17156250).

Almost surely, 2^671274760 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 671274760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823500000).

671274760 is an abundant number, since it is smaller than the sum of its proper divisors (975725240).

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

671274760 is a wasteful number, since it uses less digits than its factorization.

671274760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 671274760 is about 25908.9706472488. The cubic root of 671274760 is about 875.5886151045.

The spelling of 671274760 in words is "six hundred seventy-one million, two hundred seventy-four thousand, seven hundred sixty".