84928518 has 48 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 26641008.

The previous prime is 84928513. The next prime is 84928523. The reversal of 84928518 is 81582948.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84928513) and next prime (84928523).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84928511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56371 + ... + 57857.

It is an arithmetic number, because the mean of its divisors is an integer number (4062240).

Almost surely, 2^84928518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84928518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

84928518 is an abundant number, since it is smaller than the sum of its proper divisors (110059002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84928518 is a wasteful number, since it uses less digits than its factorization.

84928518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1678 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 84928518 is about 9215.6669861709. Note that the first 3 decimals coincide. The cubic root of 84928518 is about 439.5596800302.

The spelling of 84928518 in words is "eighty-four million, nine hundred twenty-eight thousand, five hundred eighteen".