671496827 has 4 divisors (see below), whose sum is σ = 694651920. Its totient is φ = 648341736.

The previous prime is 671496781. The next prime is 671496829. The reversal of 671496827 is 728694176.

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 671496827 - 2¹⁴ = 671480443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671496829) 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, 11577503 + ... + 11577560.

It is an arithmetic number, because the mean of its divisors is an integer number (173662980).

Almost surely, 2^671496827 is an apocalyptic number.

671496827 is a deficient number, since it is larger than the sum of its proper divisors (23155093).

671496827 is a wasteful number, since it uses less digits than its factorization.

671496827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23155092.

The product of its digits is 1016064, while the sum is 50.

The square root of 671496827 is about 25913.2558162806. The cubic root of 671496827 is about 875.6851567451.

The spelling of 671496827 in words is "six hundred seventy-one million, four hundred ninety-six thousand, eight hundred twenty-seven".