28876222 has 4 divisors (see below), whose sum is σ = 43314336. Its totient is φ = 14438110.

The previous prime is 28876207. The next prime is 28876229. The reversal of 28876222 is 22267882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28876229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7219054 + ... + 7219057.

It is an arithmetic number, because the mean of its divisors is an integer number (10828584).

Almost surely, 2^28876222 is an apocalyptic number.

28876222 is a deficient number, since it is larger than the sum of its proper divisors (14438114).

28876222 is a wasteful number, since it uses less digits than its factorization.

28876222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14438113.

The product of its digits is 43008, while the sum is 37.

The square root of 28876222 is about 5373.6600190187. The cubic root of 28876222 is about 306.7939497364.

The spelling of 28876222 in words is "twenty-eight million, eight hundred seventy-six thousand, two hundred twenty-two".