674271805 has 8 divisors (see below), whose sum is σ = 809449272. Its totient is φ = 539202048.

The previous prime is 674271797. The next prime is 674271847. The reversal of 674271805 is 508172476.

It can be written as a sum of positive squares in 4 ways, for example, as 1855044 + 672416761 = 1362^2 + 25931^2 .

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 674271805 - 2³ = 674271797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12444 + ... + 38773.

It is an arithmetic number, because the mean of its divisors is an integer number (101181159).

Almost surely, 2^674271805 is an apocalyptic number.

It is an amenable number.

674271805 is a deficient number, since it is larger than the sum of its proper divisors (135177467).

674271805 is a wasteful number, since it uses less digits than its factorization.

674271805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53855.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 674271805 is about 25966.7442125500. The cubic root of 674271805 is about 876.8897627614.

The spelling of 674271805 in words is "six hundred seventy-four million, two hundred seventy-one thousand, eight hundred five".