84788345 has 4 divisors (see below), whose sum is σ = 101746020. Its totient is φ = 67830672.

The previous prime is 84788339. The next prime is 84788381. The reversal of 84788345 is 54388748.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48052624 + 36735721 = 6932^2 + 6061^2 .

It is a cyclic number.

It is not a de Polignac number, because 84788345 - 2¹⁰ = 84787321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84788345.

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 3 ways as a sum of consecutive naturals, for example, 8478830 + ... + 8478839.

It is an arithmetic number, because the mean of its divisors is an integer number (25436505).

Almost surely, 2^84788345 is an apocalyptic number.

It is an amenable number.

84788345 is a deficient number, since it is larger than the sum of its proper divisors (16957675).

84788345 is a wasteful number, since it uses less digits than its factorization.

84788345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16957674.

The product of its digits is 860160, while the sum is 47.

The square root of 84788345 is about 9208.0586987703. The cubic root of 84788345 is about 439.3177184002.

The spelling of 84788345 in words is "eighty-four million, seven hundred eighty-eight thousand, three hundred forty-five".