84739663 has 2 divisors, whose sum is σ = 84739664. Its totient is φ = 84739662.

The previous prime is 84739619. The next prime is 84739667. The reversal of 84739663 is 36693748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84739663 - 2²⁵ = 51185231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84739667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42369831 + 42369832.

It is an arithmetic number, because the mean of its divisors is an integer number (42369832).

Almost surely, 2^84739663 is an apocalyptic number.

84739663 is a deficient number, since it is larger than the sum of its proper divisors (1).

84739663 is an equidigital number, since it uses as much as digits as its factorization.

84739663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 84739663 is about 9205.4148738664. The cubic root of 84739663 is about 439.2336228812.

The spelling of 84739663 in words is "eighty-four million, seven hundred thirty-nine thousand, six hundred sixty-three".