999000671 has 8 divisors (see below), whose sum is σ = 1037744400. Its totient is φ = 960543360.

The previous prime is 999000659. The next prime is 999000701. The reversal of 999000671 is 176000999.

It is a happy number.

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 999000671 - 2¹⁰ = 998999647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999000071) 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, 64481 + ... + 78458.

It is an arithmetic number, because the mean of its divisors is an integer number (129718050).

Almost surely, 2^999000671 is an apocalyptic number.

999000671 is a deficient number, since it is larger than the sum of its proper divisors (38743729).

999000671 is a wasteful number, since it uses less digits than its factorization.

999000671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143209.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 999000671 is about 31606.9718733067. The cubic root of 999000671 is about 999.6667793096. Note that the first 3 decimals are identical.

The spelling of 999000671 in words is "nine hundred ninety-nine million, six hundred seventy-one", and thus it is an aban number.