674407805 has 8 divisors (see below), whose sum is σ = 817302744. Its totient is φ = 534184000.

The previous prime is 674407801. The next prime is 674407849. The reversal of 674407805 is 508704476.

674407805 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 288796036 + 385611769 = 16994^2 + 19637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674407805 - 2² = 674407801 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 (674407801) 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, 667226 + ... + 668235.

It is an arithmetic number, because the mean of its divisors is an integer number (102162843).

Almost surely, 2^674407805 is an apocalyptic number.

It is an amenable number.

674407805 is a deficient number, since it is larger than the sum of its proper divisors (142894939).

674407805 is a wasteful number, since it uses less digits than its factorization.

674407805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335567.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 674407805 is about 25969.3628146707. The cubic root of 674407805 is about 876.9487147497.

The spelling of 674407805 in words is "six hundred seventy-four million, four hundred seven thousand, eight hundred five".