8572392 has 40 divisors (see below), whose sum is σ = 24012450. Its totient is φ = 2857248.

The previous prime is 8572387. The next prime is 8572397. The reversal of 8572392 is 2932758.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8572387) and next prime (8572397).

It can be written as a sum of positive squares in only one way, i.e., 4435236 + 4137156 = 2106^2 + 2034^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 8⁵ + 5⁵ + 7⁵ + 2¹⁷ + 3 + 9 + 2²³ .

It is not an unprimeable number, because it can be changed into a prime (8572397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5967 + ... + 7262.

Almost surely, 2^8572392 is an apocalyptic number.

It is an amenable number.

8572392 is an abundant number, since it is smaller than the sum of its proper divisors (15440058).

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

8572392 is a wasteful number, since it uses less digits than its factorization.

8572392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13247 (or 13234 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 8572392 is about 2927.8647509747. The cubic root of 8572392 is about 204.6604889905.

It can be divided in two parts, 857 and 2392, that added together give a square (3249 = 57²).

The spelling of 8572392 in words is "eight million, five hundred seventy-two thousand, three hundred ninety-two".