28836219 has 8 divisors (see below), whose sum is σ = 38483280. Its totient is φ = 19206656.

The previous prime is 28836193. The next prime is 28836229. The reversal of 28836219 is 91263882.

It is a happy number.

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 28836219 - 2¹² = 28832123 is a prime.

It is a super-2 number, since 2×28836219² = 1663055052431922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28836229) 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, 139 + ... + 7595.

It is an arithmetic number, because the mean of its divisors is an integer number (4810410).

Almost surely, 2^28836219 is an apocalyptic number.

28836219 is a deficient number, since it is larger than the sum of its proper divisors (9647061).

28836219 is a wasteful number, since it uses less digits than its factorization.

28836219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749.

The product of its digits is 41472, while the sum is 39.

The square root of 28836219 is about 5369.9365918044. The cubic root of 28836219 is about 306.6522143210.

The spelling of 28836219 in words is "twenty-eight million, eight hundred thirty-six thousand, two hundred nineteen".