667346674 has 8 divisors (see below), whose sum is σ = 1004219100. Its totient is φ = 332606976.

The previous prime is 667346651. The next prime is 667346737. The reversal of 667346674 is 476643766.

It can be written as a sum of positive squares in 2 ways, for example, as 637916049 + 29430625 = 25257^2 + 5425^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532399 + ... + 533650.

Almost surely, 2^667346674 is an apocalyptic number.

667346674 is a deficient number, since it is larger than the sum of its proper divisors (336872426).

667346674 is a wasteful number, since it uses less digits than its factorization.

667346674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066364.

The product of its digits is 3048192, while the sum is 49.

The square root of 667346674 is about 25833.0539038651. The cubic root of 667346674 is about 873.8773843665.

The spelling of 667346674 in words is "six hundred sixty-seven million, three hundred forty-six thousand, six hundred seventy-four".