674211971 has 4 divisors (see below), whose sum is σ = 674424000. Its totient is φ = 673999944.

The previous prime is 674211947. The next prime is 674211977. The reversal of 674211971 is 179112476.

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 674211971 - 2⁶ = 674211907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674211977) 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 3 ways as a sum of consecutive naturals, for example, 101171 + ... + 107628.

It is an arithmetic number, because the mean of its divisors is an integer number (168606000).

Almost surely, 2^674211971 is an apocalyptic number.

674211971 is a deficient number, since it is larger than the sum of its proper divisors (212029).

674211971 is a wasteful number, since it uses less digits than its factorization.

674211971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212028.

The product of its digits is 21168, while the sum is 38.

The square root of 674211971 is about 25965.5920594929. The cubic root of 674211971 is about 876.8638239764.

The spelling of 674211971 in words is "six hundred seventy-four million, two hundred eleven thousand, nine hundred seventy-one".