674089681 has 8 divisors (see below), whose sum is σ = 709853760. Its totient is φ = 638863632.

The previous prime is 674089679. The next prime is 674089687. The reversal of 674089681 is 186980476.

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 674089681 - 2¹ = 674089679 is a prime.

It is a super-2 number, since 2×674089681² = 908793796061363522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674089687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131935 + ... + 136948.

It is an arithmetic number, because the mean of its divisors is an integer number (88731720).

Almost surely, 2^674089681 is an apocalyptic number.

It is an amenable number.

674089681 is a deficient number, since it is larger than the sum of its proper divisors (35764079).

674089681 is a wasteful number, since it uses less digits than its factorization.

674089681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269015.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 674089681 is about 25963.2371055691. The cubic root of 674089681 is about 876.8108049628.

The spelling of 674089681 in words is "six hundred seventy-four million, eighty-nine thousand, six hundred eighty-one".