84874986 has 64 divisors (see below), whose sum is σ = 217128960. Its totient is φ = 24073200.

The previous prime is 84874963. The next prime is 84875009. The reversal of 84874986 is 68947848.

It is an interprime number because it is at equal distance from previous prime (84874963) and next prime (84875009).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56335 + ... + 57821.

It is an arithmetic number, because the mean of its divisors is an integer number (3392640).

Almost surely, 2^84874986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84874986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108564480).

84874986 is an abundant number, since it is smaller than the sum of its proper divisors (132253974).

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

84874986 is a wasteful number, since it uses less digits than its factorization.

84874986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1650 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 84874986 is about 9212.7621265286. The cubic root of 84874986 is about 439.4673064476.

The spelling of 84874986 in words is "eighty-four million, eight hundred seventy-four thousand, nine hundred eighty-six".