671273923 has 8 divisors (see below), whose sum is σ = 675616016. Its totient is φ = 666943200.

The previous prime is 671273891. The next prime is 671273957. The reversal of 671273923 is 329372176.

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

It is a cyclic number.

It is not a de Polignac number, because 671273923 - 2⁵ = 671273891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671273963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137065 + ... + 141877.

It is an arithmetic number, because the mean of its divisors is an integer number (84452002).

Almost surely, 2^671273923 is an apocalyptic number.

671273923 is a deficient number, since it is larger than the sum of its proper divisors (4342093).

671273923 is a wasteful number, since it uses less digits than its factorization.

671273923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685.

The product of its digits is 95256, while the sum is 40.

The square root of 671273923 is about 25908.9544945372. The cubic root of 671273923 is about 875.5882511860.

The spelling of 671273923 in words is "six hundred seventy-one million, two hundred seventy-three thousand, nine hundred twenty-three".