671610009 has 32 divisors (see below), whose sum is σ = 1058529280. Its totient is φ = 370656000.

The previous prime is 671609989. The next prime is 671610013. The reversal of 671610009 is 900016176.

It is not a de Polignac number, because 671610009 - 2⁷ = 671609881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671610029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558609 + ... + 559809.

It is an arithmetic number, because the mean of its divisors is an integer number (33079040).

Almost surely, 2^671610009 is an apocalyptic number.

It is an amenable number.

671610009 is a deficient number, since it is larger than the sum of its proper divisors (386919271).

671610009 is a wasteful number, since it uses less digits than its factorization.

671610009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 671610009 is about 25915.4395872422. The cubic root of 671610009 is about 875.7343534181.

The spelling of 671610009 in words is "six hundred seventy-one million, six hundred ten thousand, nine".