28572963 has 4 divisors (see below), whose sum is σ = 38097288. Its totient is φ = 19048640.

The previous prime is 28572953. The next prime is 28572967. The reversal of 28572963 is 36927582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28572963 - 2⁸ = 28572707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28572967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4762158 + ... + 4762163.

It is an arithmetic number, because the mean of its divisors is an integer number (9524322).

Almost surely, 2^28572963 is an apocalyptic number.

28572963 is a deficient number, since it is larger than the sum of its proper divisors (9524325).

28572963 is an equidigital number, since it uses as much as digits as its factorization.

28572963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524324.

The product of its digits is 181440, while the sum is 42.

The square root of 28572963 is about 5345.3683689714. The cubic root of 28572963 is about 305.7161813661.

The spelling of 28572963 in words is "twenty-eight million, five hundred seventy-two thousand, nine hundred sixty-three".