674640211 has 8 divisors (see below), whose sum is σ = 775748864. Its totient is φ = 574714440.

The previous prime is 674640193. The next prime is 674640221. The reversal of 674640211 is 112046476.

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

It is a cyclic number.

It is not a de Polignac number, because 674640211 - 2¹⁵ = 674607443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674640221) 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 7 ways as a sum of consecutive naturals, for example, 294495 + ... + 296776.

It is an arithmetic number, because the mean of its divisors is an integer number (96968608).

Almost surely, 2^674640211 is an apocalyptic number.

674640211 is a deficient number, since it is larger than the sum of its proper divisors (101108653).

674640211 is a wasteful number, since it uses less digits than its factorization.

674640211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591441.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 674640211 is about 25973.8370480759. The cubic root of 674640211 is about 877.0494375540.

Adding to 674640211 its reverse (112046476), we get a palindrome (786686687).

The spelling of 674640211 in words is "six hundred seventy-four million, six hundred forty thousand, two hundred eleven".