674854405 has 8 divisors (see below), whose sum is σ = 809964792. Its totient is φ = 539790528.

The previous prime is 674854391. The next prime is 674854409. The reversal of 674854405 is 504458476.

It can be written as a sum of positive squares in 4 ways, for example, as 66048129 + 608806276 = 8127^2 + 24674^2 .

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 674854405 - 2⁵ = 674854373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674854409) 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, 50047 + ... + 62083.

It is an arithmetic number, because the mean of its divisors is an integer number (101245599).

Almost surely, 2^674854405 is an apocalyptic number.

It is an amenable number.

674854405 is a deficient number, since it is larger than the sum of its proper divisors (135110387).

674854405 is a wasteful number, since it uses less digits than its factorization.

674854405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23255.

The product of its (nonzero) digits is 537600, while the sum is 43.

The square root of 674854405 is about 25977.9599853414. The cubic root of 674854405 is about 877.1422469490.

The spelling of 674854405 in words is "six hundred seventy-four million, eight hundred fifty-four thousand, four hundred five".