671000858 has 16 divisors (see below), whose sum is σ = 1121364864. Its totient is φ = 298510560.

The previous prime is 671000857. The next prime is 671000861. The reversal of 671000858 is 858000176.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (671000851) 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, 323435 + ... + 325502.

It is an arithmetic number, because the mean of its divisors is an integer number (70085304).

Almost surely, 2^671000858 is an apocalyptic number.

671000858 is a deficient number, since it is larger than the sum of its proper divisors (450364006).

671000858 is a wasteful number, since it uses less digits than its factorization.

671000858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648997.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 671000858 is about 25903.6842553333. The cubic root of 671000858 is about 875.4695093308.

The spelling of 671000858 in words is "six hundred seventy-one million, eight hundred fifty-eight", and thus it is an aban number.