671491190 has 8 divisors (see below), whose sum is σ = 1208684160. Its totient is φ = 268596472.

The previous prime is 671491189. The next prime is 671491193. The reversal of 671491190 is 91194176.

671491190 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×671491190² = 901800836495232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671491193) 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 3 ways as a sum of consecutive naturals, for example, 33574550 + ... + 33574569.

It is an arithmetic number, because the mean of its divisors is an integer number (151085520).

Almost surely, 2^671491190 is an apocalyptic number.

671491190 is a deficient number, since it is larger than the sum of its proper divisors (537192970).

671491190 is a wasteful number, since it uses less digits than its factorization.

671491190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67149126.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 671491190 is about 25913.1470493261. The cubic root of 671491190 is about 875.6827063731.

The spelling of 671491190 in words is "six hundred seventy-one million, four hundred ninety-one thousand, one hundred ninety".