671000011 has 4 divisors (see below), whose sum is σ = 732000024. Its totient is φ = 610000000.

The previous prime is 671000003. The next prime is 671000017. The reversal of 671000011 is 110000176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671000011 - 2³ = 671000003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671000017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30499990 + ... + 30500011.

It is an arithmetic number, because the mean of its divisors is an integer number (183000006).

Almost surely, 2^671000011 is an apocalyptic number.

671000011 is a deficient number, since it is larger than the sum of its proper divisors (61000013).

671000011 is a wasteful number, since it uses less digits than its factorization.

671000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61000012.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 671000011 is about 25903.6679063024. The cubic root of 671000011 is about 875.4691409641.

Adding to 671000011 its reverse (110000176), we get a palindrome (781000187).

It can be divided in two parts, 6 and 71000011, that added together give a palindrome (71000017).

The spelling of 671000011 in words is "six hundred seventy-one million, eleven", and thus it is an aban number.