84808479 has 16 divisors (see below), whose sum is σ = 129415680. Its totient is φ = 48393120.

The previous prime is 84808463. The next prime is 84808481. The reversal of 84808479 is 97480848.

It is not a de Polignac number, because 84808479 - 2⁴ = 84808463 is a prime.

It is a super-2 number, since 2×84808479² = 14384956220586882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84808439) 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 15 ways as a sum of consecutive naturals, for example, 14782 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (8088480).

Almost surely, 2^84808479 is an apocalyptic number.

84808479 is a deficient number, since it is larger than the sum of its proper divisors (44607201).

84808479 is a wasteful number, since it uses less digits than its factorization.

84808479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 84808479 is about 9209.1519153503. The cubic root of 84808479 is about 439.3524893855.

The spelling of 84808479 in words is "eighty-four million, eight hundred eight thousand, four hundred seventy-nine".