671248727 has 8 divisors (see below), whose sum is σ = 678577440. Its totient is φ = 663933600.

The previous prime is 671248717. The next prime is 671248729. The reversal of 671248727 is 727842176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 671248727 - 2¹² = 671244631 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 (671248729) 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, 119774 + ... + 125252.

It is an arithmetic number, because the mean of its divisors is an integer number (84822180).

Almost surely, 2^671248727 is an apocalyptic number.

671248727 is a deficient number, since it is larger than the sum of its proper divisors (7328713).

671248727 is a wasteful number, since it uses less digits than its factorization.

671248727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793.

The product of its digits is 263424, while the sum is 44.

The square root of 671248727 is about 25908.4682488178. The cubic root of 671248727 is about 875.5772960966.

The spelling of 671248727 in words is "six hundred seventy-one million, two hundred forty-eight thousand, seven hundred twenty-seven".