674016961 has 4 divisors (see below), whose sum is σ = 675492292. Its totient is φ = 672541632.

The previous prime is 674016949. The next prime is 674016971. The reversal of 674016961 is 169610476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 632220736 + 41796225 = 25144^2 + 6465^2 .

It is a cyclic number.

It is not a de Polignac number, because 674016961 - 2⁵ = 674016929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674016971) 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, 736980 + ... + 737893.

It is an arithmetic number, because the mean of its divisors is an integer number (168873073).

Almost surely, 2^674016961 is an apocalyptic number.

It is an amenable number.

674016961 is a deficient number, since it is larger than the sum of its proper divisors (1475331).

674016961 is a wasteful number, since it uses less digits than its factorization.

674016961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475330.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 674016961 is about 25961.8366260941. The cubic root of 674016961 is about 876.7792740570.

The spelling of 674016961 in words is "six hundred seventy-four million, sixteen thousand, nine hundred sixty-one".