284666645 has 16 divisors (see below), whose sum is σ = 371182080. Its totient is φ = 208785600.

The previous prime is 284666573. The next prime is 284666651. The reversal of 284666645 is 546666482.

284666645 = T₄₂₇₀ + T₄₂₇₁ + ... + T₄₃₀₀.

It is not a de Polignac number, because 284666645 - 2¹⁰ = 284665621 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 284666645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45386 + ... + 51275.

It is an arithmetic number, because the mean of its divisors is an integer number (23198880).

Almost surely, 2^284666645 is an apocalyptic number.

It is an amenable number.

284666645 is a deficient number, since it is larger than the sum of its proper divisors (86515435).

284666645 is a wasteful number, since it uses less digits than its factorization.

284666645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96716.

The product of its digits is 1658880, while the sum is 47.

The square root of 284666645 is about 16872.0670043715. The cubic root of 284666645 is about 657.8277566117.

The spelling of 284666645 in words is "two hundred eighty-four million, six hundred sixty-six thousand, six hundred forty-five".