671674481 has 8 divisors (see below), whose sum is σ = 695167680. Its totient is φ = 648203472.

The previous prime is 671674469. The next prime is 671674513. The reversal of 671674481 is 184476176.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671674481 is a prime.

It is a super-2 number, since 2×671674481² = 902293216853238722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671674411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77156 + ... + 85418.

It is an arithmetic number, because the mean of its divisors is an integer number (86895960).

Almost surely, 2^671674481 is an apocalyptic number.

It is an amenable number.

671674481 is a deficient number, since it is larger than the sum of its proper divisors (23493199).

671674481 is a wasteful number, since it uses less digits than its factorization.

671674481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095.

The product of its digits is 225792, while the sum is 44.

The square root of 671674481 is about 25916.6834490835. The cubic root of 671674481 is about 875.7623749077.

The spelling of 671674481 in words is "six hundred seventy-one million, six hundred seventy-four thousand, four hundred eighty-one".