284740943 has 4 divisors (see below), whose sum is σ = 297121008. Its totient is φ = 272360880.

The previous prime is 284740933. The next prime is 284740949. The reversal of 284740943 is 349047482.

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 284740943 - 2¹⁶ = 284675407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 284740943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284740949) 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, 6189998 + ... + 6190043.

It is an arithmetic number, because the mean of its divisors is an integer number (74280252).

Almost surely, 2^284740943 is an apocalyptic number.

284740943 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

284740943 is a deficient number, since it is larger than the sum of its proper divisors (12380065).

284740943 is a wasteful number, since it uses less digits than its factorization.

284740943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380064.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 284740943 is about 16874.2686656341. The cubic root of 284740943 is about 657.8849826525.

The spelling of 284740943 in words is "two hundred eighty-four million, seven hundred forty thousand, nine hundred forty-three".