674028665 has 8 divisors (see below), whose sum is σ = 856413000. Its totient is φ = 507503872.

The previous prime is 674028661. The next prime is 674028673. The reversal of 674028665 is 566820476.

674028665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 26173456 + 647855209 = 5116^2 + 25453^2 .

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 674028665 - 2² = 674028661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (674028661) 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, 3964790 + ... + 3964959.

It is an arithmetic number, because the mean of its divisors is an integer number (107051625).

Almost surely, 2^674028665 is an apocalyptic number.

It is an amenable number.

674028665 is a deficient number, since it is larger than the sum of its proper divisors (182384335).

674028665 is a wasteful number, since it uses less digits than its factorization.

674028665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929771.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 674028665 is about 25962.0620328972. The cubic root of 674028665 is about 876.7843489863.

It can be divided in two parts, 67402 and 8665, that added together give a palindrome (76067).

The spelling of 674028665 in words is "six hundred seventy-four million, twenty-eight thousand, six hundred sixty-five".