84849864 has 64 divisors (see below), whose sum is σ = 232346880. Its totient is φ = 25608000.

The previous prime is 84849803. The next prime is 84849889. The reversal of 84849864 is 46894848.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86899 + ... + 87869.

It is an arithmetic number, because the mean of its divisors is an integer number (3630420).

Almost surely, 2^84849864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84849864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116173440).

84849864 is an abundant number, since it is smaller than the sum of its proper divisors (147497016).

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

84849864 is a wasteful number, since it uses less digits than its factorization.

84849864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1318 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 84849864 is about 9211.3985908764. The cubic root of 84849864 is about 439.4239431135.

It can be divided in two parts, 84 and 849864, that added together give a palindrome (849948).

The spelling of 84849864 in words is "eighty-four million, eight hundred forty-nine thousand, eight hundred sixty-four".