86749572 has 96 divisors (see below), whose sum is σ = 263837952. Its totient is φ = 21528576.

The previous prime is 86749567. The next prime is 86749577. The reversal of 86749572 is 27594768.

It is an interprime number because it is at equal distance from previous prime (86749567) and next prime (86749577).

It is not an unprimeable number, because it can be changed into a prime (86749577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16228 + ... + 20900.

It is an arithmetic number, because the mean of its divisors is an integer number (2748312).

Almost surely, 2^86749572 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 86749572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131918976).

86749572 is an abundant number, since it is smaller than the sum of its proper divisors (177088380).

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

86749572 is a wasteful number, since it uses less digits than its factorization.

86749572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717 (or 4715 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 86749572 is about 9313.9450288264. The cubic root of 86749572 is about 442.6791971078.

The spelling of 86749572 in words is "eighty-six million, seven hundred forty-nine thousand, five hundred seventy-two".