84326864 has 40 divisors (see below), whose sum is σ = 172846080. Its totient is φ = 39744000.

The previous prime is 84326863. The next prime is 84326881. The reversal of 84326864 is 46862348.

It is a super-2 number, since 2×84326864² = 14222039984148992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84326861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72689 + ... + 73839.

It is an arithmetic number, because the mean of its divisors is an integer number (4321152).

Almost surely, 2^84326864 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 84326864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86423040).

84326864 is an abundant number, since it is smaller than the sum of its proper divisors (88519216).

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

84326864 is a wasteful number, since it uses less digits than its factorization.

84326864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1413 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 84326864 is about 9182.9659696636. The cubic root of 84326864 is about 438.5192371512.

The spelling of 84326864 in words is "eighty-four million, three hundred twenty-six thousand, eight hundred sixty-four".