345634666 has 8 divisors (see below), whose sum is σ = 558332964. Its totient is φ = 159523680.

The previous prime is 345634661. The next prime is 345634687. The reversal of 345634666 is 666436543.

It is a happy number.

345634666 is digitally balanced in base 3, 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 2 ways, for example, as 328370641 + 17264025 = 18121^2 + 4155^2 .

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 (345634661) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6646795 + ... + 6646846.

Almost surely, 2^345634666 is an apocalyptic number.

345634666 is a deficient number, since it is larger than the sum of its proper divisors (212698298).

345634666 is a wasteful number, since it uses less digits than its factorization.

345634666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13293656.

The product of its digits is 933120, while the sum is 43.

The square root of 345634666 is about 18591.2524053653. The cubic root of 345634666 is about 701.7877202752.

The spelling of 345634666 in words is "three hundred forty-five million, six hundred thirty-four thousand, six hundred sixty-six".