84129963 has 4 divisors (see below), whose sum is σ = 112173288. Its totient is φ = 56086640.

The previous prime is 84129949. The next prime is 84130003. The reversal of 84129963 is 36992148.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84129963 - 2⁵ = 84129931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84129763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14021658 + ... + 14021663.

It is an arithmetic number, because the mean of its divisors is an integer number (28043322).

Almost surely, 2^84129963 is an apocalyptic number.

84129963 is a deficient number, since it is larger than the sum of its proper divisors (28043325).

84129963 is a wasteful number, since it uses less digits than its factorization.

84129963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28043324.

The product of its digits is 93312, while the sum is 42.

The square root of 84129963 is about 9172.2387125500. The cubic root of 84129963 is about 438.1776608774.

The spelling of 84129963 in words is "eighty-four million, one hundred twenty-nine thousand, nine hundred sixty-three".