285465847 has 2 divisors, whose sum is σ = 285465848. Its totient is φ = 285465846.

The previous prime is 285465797. The next prime is 285465881. The reversal of 285465847 is 748564582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285465847 - 2¹⁵ = 285433079 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285465847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285462847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142732923 + 142732924.

It is an arithmetic number, because the mean of its divisors is an integer number (142732924).

Almost surely, 2^285465847 is an apocalyptic number.

285465847 is a deficient number, since it is larger than the sum of its proper divisors (1).

285465847 is an equidigital number, since it uses as much as digits as its factorization.

285465847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2150400, while the sum is 49.

The square root of 285465847 is about 16895.7345800649. The cubic root of 285465847 is about 658.4427988389.

The spelling of 285465847 in words is "two hundred eighty-five million, four hundred sixty-five thousand, eight hundred forty-seven".