667290674 has 8 divisors (see below), whose sum is σ = 1044455040. Its totient is φ = 319138996.

The previous prime is 667290661. The next prime is 667290713. The reversal of 667290674 is 476092766.

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

It is an unprimeable number.

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, 7253114 + ... + 7253205.

It is an arithmetic number, because the mean of its divisors is an integer number (130556880).

Almost surely, 2^667290674 is an apocalyptic number.

667290674 is a deficient number, since it is larger than the sum of its proper divisors (377164366).

667290674 is a wasteful number, since it uses less digits than its factorization.

667290674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506344.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 667290674 is about 25831.9699984341. The cubic root of 667290674 is about 873.8529400488.

The spelling of 667290674 in words is "six hundred sixty-seven million, two hundred ninety thousand, six hundred seventy-four".