84028917 has 16 divisors (see below), whose sum is σ = 128189952. Its totient is φ = 47961840.

The previous prime is 84028907. The next prime is 84028927. The reversal of 84028917 is 71982048.

It is an interprime number because it is at equal distance from previous prime (84028907) and next prime (84028927).

It is not a de Polignac number, because 84028917 - 2¹⁰ = 84027893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84028907) 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, 23242 + ... + 26612.

It is an arithmetic number, because the mean of its divisors is an integer number (8011872).

Almost surely, 2^84028917 is an apocalyptic number.

It is an amenable number.

84028917 is a deficient number, since it is larger than the sum of its proper divisors (44161035).

84028917 is a wasteful number, since it uses less digits than its factorization.

84028917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 84028917 is about 9166.7288058500. The cubic root of 84028917 is about 438.0021632053.

The spelling of 84028917 in words is "eighty-four million, twenty-eight thousand, nine hundred seventeen".