674887855 has 8 divisors (see below), whose sum is σ = 837792000. Its totient is φ = 521292576.

The previous prime is 674887853. The next prime is 674887861. The reversal of 674887855 is 558788476.

It is a happy number.

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 674887855 - 2¹ = 674887853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 674887855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674887853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327055 + ... + 2327344.

It is an arithmetic number, because the mean of its divisors is an integer number (104724000).

Almost surely, 2^674887855 is an apocalyptic number.

674887855 is a deficient number, since it is larger than the sum of its proper divisors (162904145).

674887855 is a wasteful number, since it uses less digits than its factorization.

674887855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654433.

The product of its digits is 15052800, while the sum is 58.

The square root of 674887855 is about 25978.6037923519. The cubic root of 674887855 is about 877.1567389260.

The spelling of 674887855 in words is "six hundred seventy-four million, eight hundred eighty-seven thousand, eight hundred fifty-five".