84879739 has 8 divisors (see below), whose sum is σ = 99627488. Its totient is φ = 70787520.

The previous prime is 84879727. The next prime is 84879761. The reversal of 84879739 is 93797848.

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

It is a cyclic number.

It is not a de Polignac number, because 84879739 - 2¹¹ = 84877691 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 84879739.

It is not an unprimeable number, because it can be changed into a prime (84879779) 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, 163602 + ... + 164119.

It is an arithmetic number, because the mean of its divisors is an integer number (12453436).

Almost surely, 2^84879739 is an apocalyptic number.

84879739 is a deficient number, since it is larger than the sum of its proper divisors (14747749).

84879739 is a wasteful number, since it uses less digits than its factorization.

84879739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327765.

The product of its digits is 3048192, while the sum is 55.

The square root of 84879739 is about 9213.0200802994. The cubic root of 84879739 is about 439.4755096855.

The spelling of 84879739 in words is "eighty-four million, eight hundred seventy-nine thousand, seven hundred thirty-nine".