671091670 has 8 divisors (see below), whose sum is σ = 1207965024. Its totient is φ = 268436664.

The previous prime is 671091653. The next prime is 671091691. The reversal of 671091670 is 76190176.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33554574 + ... + 33554593.

It is an arithmetic number, because the mean of its divisors is an integer number (150995628).

Almost surely, 2^671091670 is an apocalyptic number.

671091670 is a deficient number, since it is larger than the sum of its proper divisors (536873354).

671091670 is a wasteful number, since it uses less digits than its factorization.

671091670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67109174.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 671091670 is about 25905.4370740970. The cubic root of 671091670 is about 875.5090023507.

The spelling of 671091670 in words is "six hundred seventy-one million, ninety-one thousand, six hundred seventy".