86744472 has 64 divisors (see below), whose sum is σ = 231880320. Its totient is φ = 26946048.

The previous prime is 86744467. The next prime is 86744491. The reversal of 86744472 is 27444768.

It is a congruent number.

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, 42663 + ... + 44649.

It is an arithmetic number, because the mean of its divisors is an integer number (3623130).

Almost surely, 2^86744472 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 86744472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115940160).

86744472 is an abundant number, since it is smaller than the sum of its proper divisors (145135848).

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

86744472 is a wasteful number, since it uses less digits than its factorization.

86744472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2116 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 86744472 is about 9313.6712417822. The cubic root of 86744472 is about 442.6705219137.

The spelling of 86744472 in words is "eighty-six million, seven hundred forty-four thousand, four hundred seventy-two".