674709986 has 8 divisors (see below), whose sum is σ = 1012239084. Its totient is φ = 337296960.

The previous prime is 674709967. The next prime is 674709989. The reversal of 674709986 is 689907476.

It can be written as a sum of positive squares in 2 ways, for example, as 640849225 + 33860761 = 25315^2 + 5819^2 .

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

It is not an unprimeable number, because it can be changed into a prime (674709989) 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 3 ways as a sum of consecutive naturals, for example, 12635 + ... + 38846.

Almost surely, 2^674709986 is an apocalyptic number.

674709986 is a deficient number, since it is larger than the sum of its proper divisors (337529098).

674709986 is a wasteful number, since it uses less digits than its factorization.

674709986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58036.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The square root of 674709986 is about 25975.1801918678. The cubic root of 674709986 is about 877.0796729367.

The spelling of 674709986 in words is "six hundred seventy-four million, seven hundred nine thousand, nine hundred eighty-six".