8613572 has 24 divisors (see below), whose sum is σ = 16558752. Its totient is φ = 3888000.

The previous prime is 8613571. The next prime is 8613617. The reversal of 8613572 is 2753168.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8613571) 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 7 ways as a sum of consecutive naturals, for example, 6572 + ... + 7772.

It is an arithmetic number, because the mean of its divisors is an integer number (689948).

Almost surely, 2^8613572 is an apocalyptic number.

It is an amenable number.

8613572 is a deficient number, since it is larger than the sum of its proper divisors (7945180).

8613572 is a wasteful number, since it uses less digits than its factorization.

8613572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1377 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 8613572 is about 2934.8887542801. Note that the first 3 decimals coincide. The cubic root of 8613572 is about 204.9876811951.

The spelling of 8613572 in words is "eight million, six hundred thirteen thousand, five hundred seventy-two".