8725320 has 80 divisors (see below), whose sum is σ = 29337660. Its totient is φ = 2325888.

The previous prime is 8725319. The next prime is 8725357. The reversal of 8725320 is 235278.

It can be written as a sum of positive squares in 2 ways, for example, as 8608356 + 116964 = 2934^2 + 342^2 .

It is a super-2 number, since 2×8725320² = 152262418204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1894 + ... + 4586.

Almost surely, 2^8725320 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 8725320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14668830).

8725320 is an abundant number, since it is smaller than the sum of its proper divisors (20612340).

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

8725320 is a wasteful number, since it uses less digits than its factorization.

8725320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 8725320 is about 2953.8652643613. The cubic root of 8725320 is about 205.8703428929.

It can be divided in two parts, 8725 and 320, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 8725320 in words is "eight million, seven hundred twenty-five thousand, three hundred twenty".