84000879 has 12 divisors (see below), whose sum is σ = 121721496. Its totient is φ = 55822032.

The previous prime is 84000869. The next prime is 84000911. The reversal of 84000879 is 97800048.

It is not a de Polignac number, because 84000879 - 2⁴ = 84000863 is a prime.

It is a super-2 number, since 2×84000879² = 14112295345545282, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84000869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11869 + ... + 17574.

It is an arithmetic number, because the mean of its divisors is an integer number (10143458).

Almost surely, 2^84000879 is an apocalyptic number.

84000879 is a deficient number, since it is larger than the sum of its proper divisors (37720617).

84000879 is a wasteful number, since it uses less digits than its factorization.

84000879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29766 (or 29763 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 84000879 is about 9165.1993431676. The cubic root of 84000879 is about 437.9534416014.

The spelling of 84000879 in words is "eighty-four million, eight hundred seventy-nine", and thus it is an aban number.