84929817 has 16 divisors (see below), whose sum is σ = 130073600. Its totient is φ = 48285072.

The previous prime is 84929809. The next prime is 84929827. The reversal of 84929817 is 71892948.

It is not a de Polignac number, because 84929817 - 2³ = 84929809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84929827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5983 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (8129600).

Almost surely, 2^84929817 is an apocalyptic number.

It is an amenable number.

84929817 is a deficient number, since it is larger than the sum of its proper divisors (45143783).

84929817 is a wasteful number, since it uses less digits than its factorization.

84929817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20532.

The product of its digits is 290304, while the sum is 48.

The square root of 84929817 is about 9215.7374637085. The cubic root of 84929817 is about 439.5619210722.

The spelling of 84929817 in words is "eighty-four million, nine hundred twenty-nine thousand, eight hundred seventeen".