345566803 has 4 divisors (see below), whose sum is σ = 365894280. Its totient is φ = 325239328.

The previous prime is 345566801. The next prime is 345566807. The reversal of 345566803 is 308665543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345566803 - 2¹ = 345566801 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345566801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10163713 + ... + 10163746.

It is an arithmetic number, because the mean of its divisors is an integer number (91473570).

Almost surely, 2^345566803 is an apocalyptic number.

345566803 is a deficient number, since it is larger than the sum of its proper divisors (20327477).

345566803 is a wasteful number, since it uses less digits than its factorization.

345566803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20327476.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 345566803 is about 18589.4271832136. The cubic root of 345566803 is about 701.7417868644.

The spelling of 345566803 in words is "three hundred forty-five million, five hundred sixty-six thousand, eight hundred three".