84629879 has 8 divisors (see below), whose sum is σ = 85608960. Its totient is φ = 83655936.

The previous prime is 84629861. The next prime is 84629899. The reversal of 84629879 is 97892648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84629879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84629879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84629899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38687 + ... + 40815.

It is an arithmetic number, because the mean of its divisors is an integer number (10701120).

Almost surely, 2^84629879 is an apocalyptic number.

84629879 is a deficient number, since it is larger than the sum of its proper divisors (979081).

84629879 is a wasteful number, since it uses less digits than its factorization.

84629879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569.

The product of its digits is 1741824, while the sum is 53.

The square root of 84629879 is about 9199.4499292077. The cubic root of 84629879 is about 439.0438586810.

The spelling of 84629879 in words is "eighty-four million, six hundred twenty-nine thousand, eight hundred seventy-nine".