671000215 has 16 divisors (see below), whose sum is σ = 826135200. Its totient is φ = 523005952.

The previous prime is 671000207. The next prime is 671000233. The reversal of 671000215 is 512000176.

It is a cyclic number.

It is not a de Polignac number, because 671000215 - 2³ = 671000207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23271 + ... + 43399.

It is an arithmetic number, because the mean of its divisors is an integer number (51633450).

Almost surely, 2^671000215 is an apocalyptic number.

671000215 is a deficient number, since it is larger than the sum of its proper divisors (155134985).

671000215 is a wasteful number, since it uses less digits than its factorization.

671000215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20306.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 671000215 is about 25903.6718439684. The cubic root of 671000215 is about 875.4692296853.

The spelling of 671000215 in words is "six hundred seventy-one million, two hundred fifteen", and thus it is an aban number.