284542897 has 2 divisors, whose sum is σ = 284542898. Its totient is φ = 284542896.

The previous prime is 284542877. The next prime is 284542901. The reversal of 284542897 is 798245482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170459136 + 114083761 = 13056^2 + 10681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284542897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284542897.

It is not a weakly prime, because it can be changed into another prime (284542837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142271448 + 142271449.

It is an arithmetic number, because the mean of its divisors is an integer number (142271449).

Almost surely, 2^284542897 is an apocalyptic number.

It is an amenable number.

284542897 is a deficient number, since it is larger than the sum of its proper divisors (1).

284542897 is an equidigital number, since it uses as much as digits as its factorization.

284542897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 284542897 is about 16868.3993609352. The cubic root of 284542897 is about 657.7324209277.

The spelling of 284542897 in words is "two hundred eighty-four million, five hundred forty-two thousand, eight hundred ninety-seven".