8572403 has 24 divisors (see below), whose sum is σ = 10859184. Its totient is φ = 6720000.

The previous prime is 8572397. The next prime is 8572411. The reversal of 8572403 is 3042758.

It is a happy number.

It is not a de Polignac number, because 8572403 - 2⁴ = 8572387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8572433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34028 + ... + 34278.

It is an arithmetic number, because the mean of its divisors is an integer number (452466).

Almost surely, 2^8572403 is an apocalyptic number.

8572403 is a deficient number, since it is larger than the sum of its proper divisors (2286781).

8572403 is a wasteful number, since it uses less digits than its factorization.

8572403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 8572403 is about 2927.8666294761. The cubic root of 8572403 is about 204.6605765299.

The spelling of 8572403 in words is "eight million, five hundred seventy-two thousand, four hundred three".