345047805 has 12 divisors (see below), whose sum is σ = 598082940. Its totient is φ = 184025472.

The previous prime is 345047797. The next prime is 345047819. The reversal of 345047805 is 508740543.

It can be written as a sum of positive squares in 2 ways, for example, as 188622756 + 156425049 = 13734^2 + 12507^2 .

It is not a de Polignac number, because 345047805 - 2³ = 345047797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345047805.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3833820 + ... + 3833909.

It is an arithmetic number, because the mean of its divisors is an integer number (49840245).

Almost surely, 2^345047805 is an apocalyptic number.

It is an amenable number.

345047805 is a deficient number, since it is larger than the sum of its proper divisors (253035135).

345047805 is a wasteful number, since it uses less digits than its factorization.

345047805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7667740 (or 7667737 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 345047805 is about 18575.4624437724. The cubic root of 345047805 is about 701.3903014575.

The spelling of 345047805 in words is "three hundred forty-five million, forty-seven thousand, eight hundred five".