674410781 has 8 divisors (see below), whose sum is σ = 742233024. Its totient is φ = 607673920.

The previous prime is 674410733. The next prime is 674410787. The reversal of 674410781 is 187014476.

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 674410781 - 2⁶ = 674410717 is a prime.

It is a super-2 number, since 2×674410781² = 909659803058059922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674410787) 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, 270041 + ... + 272526.

It is an arithmetic number, because the mean of its divisors is an integer number (92779128).

Almost surely, 2^674410781 is an apocalyptic number.

It is an amenable number.

674410781 is a deficient number, since it is larger than the sum of its proper divisors (67822243).

674410781 is a wasteful number, since it uses less digits than its factorization.

674410781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542691.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 674410781 is about 25969.4201128943. The cubic root of 674410781 is about 876.9500046693.

The spelling of 674410781 in words is "six hundred seventy-four million, four hundred ten thousand, seven hundred eighty-one".