671717400 has 48 divisors (see below), whose sum is σ = 2082325800. Its totient is φ = 179124480.

The previous prime is 671717383. The next prime is 671717407. The reversal of 671717400 is 4717176.

671717400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671717407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559165 + ... + 560364.

Almost surely, 2^671717400 is an apocalyptic number.

671717400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671717400 is an abundant number, since it is smaller than the sum of its proper divisors (1410608400).

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

671717400 is a wasteful number, since it uses less digits than its factorization.

671717400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119548 (or 1119539 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 671717400 is about 25917.5114546131. The cubic root of 671717400 is about 875.7810278147.

The spelling of 671717400 in words is "six hundred seventy-one million, seven hundred seventeen thousand, four hundred".