842465287 has 2 divisors, whose sum is σ = 842465288. Its totient is φ = 842465286.

The previous prime is 842465279. The next prime is 842465329. The reversal of 842465287 is 782564248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842465287 - 2³ = 842465279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842465227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421232643 + 421232644.

It is an arithmetic number, because the mean of its divisors is an integer number (421232644).

Almost surely, 2^842465287 is an apocalyptic number.

842465287 is a deficient number, since it is larger than the sum of its proper divisors (1).

842465287 is an equidigital number, since it uses as much as digits as its factorization.

842465287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 860160, while the sum is 46.

The square root of 842465287 is about 29025.2525742671. The cubic root of 842465287 is about 944.4609476665.

The spelling of 842465287 in words is "eight hundred forty-two million, four hundred sixty-five thousand, two hundred eighty-seven".