671700312 has 192 divisors, whose sum is σ = 2024755200. Its totient is φ = 200309760.

The previous prime is 671700301. The next prime is 671700313. The reversal of 671700312 is 213007176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671700313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1993008 + ... + 1993344.

It is an arithmetic number, because the mean of its divisors is an integer number (10545600).

Almost surely, 2^671700312 is an apocalyptic number.

671700312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671700312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1012377600).

671700312 is an abundant number, since it is smaller than the sum of its proper divisors (1353054888).

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

671700312 is a wasteful number, since it uses less digits than its factorization.

671700312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 671700312 is about 25917.1817912365. The cubic root of 671700312 is about 875.7736013418.

Adding to 671700312 its reverse (213007176), we get a palindrome (884707488).

The spelling of 671700312 in words is "six hundred seventy-one million, seven hundred thousand, three hundred twelve".