28562263 has 8 divisors (see below), whose sum is σ = 30225200. Its totient is φ = 26915328.

The previous prime is 28562249. The next prime is 28562267. The reversal of 28562263 is 36226582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28562263 - 2⁵ = 28562231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28562267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (3778150).

Almost surely, 2^28562263 is an apocalyptic number.

28562263 is a deficient number, since it is larger than the sum of its proper divisors (1662937).

28562263 is a wasteful number, since it uses less digits than its factorization.

28562263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8001.

The product of its digits is 34560, while the sum is 34.

The square root of 28562263 is about 5344.3674087772. The cubic root of 28562263 is about 305.6780150810.

The spelling of 28562263 in words is "twenty-eight million, five hundred sixty-two thousand, two hundred sixty-three".