671272677 has 28 divisors (see below), whose sum is σ = 1023572640. Its totient is φ = 439901928.

The previous prime is 671272639. The next prime is 671272757. The reversal of 671272677 is 776272176.

It is not a de Polignac number, because 671272677 - 2²³ = 662884069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671272607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 35208 + ... + 50814.

Almost surely, 2^671272677 is an apocalyptic number.

It is an amenable number.

671272677 is a deficient number, since it is larger than the sum of its proper divisors (352299963).

671272677 is an equidigital number, since it uses as much as digits as its factorization.

671272677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684 (or 15669 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 671272677 is about 25908.9304487854. The cubic root of 671272677 is about 875.5877094381.

The spelling of 671272677 in words is "six hundred seventy-one million, two hundred seventy-two thousand, six hundred seventy-seven".