284680679 has 2 divisors, whose sum is σ = 284680680. Its totient is φ = 284680678.

The previous prime is 284680673. The next prime is 284680681. The reversal of 284680679 is 976086482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 284680679 - 2²⁴ = 267903463 is a prime.

Together with 284680681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284680673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142340339 + 142340340.

It is an arithmetic number, because the mean of its divisors is an integer number (142340340).

Almost surely, 2^284680679 is an apocalyptic number.

284680679 is a deficient number, since it is larger than the sum of its proper divisors (1).

284680679 is an equidigital number, since it uses as much as digits as its factorization.

284680679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 284680679 is about 16872.4828937534. The cubic root of 284680679 is about 657.8385666863.

The spelling of 284680679 in words is "two hundred eighty-four million, six hundred eighty thousand, six hundred seventy-nine".