84862643 has 2 divisors, whose sum is σ = 84862644. Its totient is φ = 84862642.

The previous prime is 84862633. The next prime is 84862649. The reversal of 84862643 is 34626848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84862643 - 2¹⁴ = 84846259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84862643.

It is not a weakly prime, because it can be changed into another prime (84862649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42431321 + 42431322.

It is an arithmetic number, because the mean of its divisors is an integer number (42431322).

Almost surely, 2^84862643 is an apocalyptic number.

84862643 is a deficient number, since it is larger than the sum of its proper divisors (1).

84862643 is an equidigital number, since it uses as much as digits as its factorization.

84862643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 41.

The square root of 84862643 is about 9212.0922162123. The cubic root of 84862643 is about 439.4460021419.

The spelling of 84862643 in words is "eighty-four million, eight hundred sixty-two thousand, six hundred forty-three".