8669724 has 48 divisors (see below), whose sum is σ = 23923200. Its totient is φ = 2390976.

The previous prime is 8669701. The next prime is 8669767. The reversal of 8669724 is 4279668.

It is a super-2 number, since 2×8669724² = 150328228472352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a d-powerful number, because it can be written as 8 + 6² + 6⁷ + 9³ + 7³ + 2²³ + 4³ .

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, 657 + ... + 4215.

It is an arithmetic number, because the mean of its divisors is an integer number (498400).

Almost surely, 2^8669724 is an apocalyptic number.

8669724 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8669724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11961600).

8669724 is an abundant number, since it is smaller than the sum of its proper divisors (15253476).

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

8669724 is a wasteful number, since it uses less digits than its factorization.

8669724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602 (or 3600 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 8669724 is about 2944.4395052369. The cubic root of 8669724 is about 205.4321559599.

The spelling of 8669724 in words is "eight million, six hundred sixty-nine thousand, seven hundred twenty-four".