434336666 has 4 divisors (see below), whose sum is σ = 651505002. Its totient is φ = 217168332.

The previous prime is 434336611. The next prime is 434336687. The reversal of 434336666 is 666633434.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666633434 = 2 ⋅333316717.

It can be written as a sum of positive squares in only one way, i.e., 306985441 + 127351225 = 17521^2 + 11285^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108584165 + ... + 108584168.

Almost surely, 2^434336666 is an apocalyptic number.

434336666 is a deficient number, since it is larger than the sum of its proper divisors (217168336).

434336666 is a wasteful number, since it uses less digits than its factorization.

434336666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217168335.

The product of its digits is 559872, while the sum is 41.

The square root of 434336666 is about 20840.7453321612. The cubic root of 434336666 is about 757.3131496428.

The spelling of 434336666 in words is "four hundred thirty-four million, three hundred thirty-six thousand, six hundred sixty-six".