86740224 has 72 divisors (see below), whose sum is σ = 235321632. Its totient is φ = 28354560.

The previous prime is 86740223. The next prime is 86740237. The reversal of 86740224 is 42204768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86740223) 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, 39639 + ... + 41769.

It is an arithmetic number, because the mean of its divisors is an integer number (3268356).

Almost surely, 2^86740224 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 86740224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117660816).

86740224 is an abundant number, since it is smaller than the sum of its proper divisors (148581408).

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

86740224 is a wasteful number, since it uses less digits than its factorization.

86740224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 86740224 is about 9313.4431871355. The cubic root of 86740224 is about 442.6632957276.

The spelling of 86740224 in words is "eighty-six million, seven hundred forty thousand, two hundred twenty-four".