28837227 has 16 divisors (see below), whose sum is σ = 39809952. Its totient is φ = 18554880.

The previous prime is 28837189. The next prime is 28837229. The reversal of 28837227 is 72273882.

It is not a de Polignac number, because 28837227 - 2⁶ = 28837163 is a prime.

It is a super-2 number, since 2×28837227² = 1663171322099058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28837229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10723 + ... + 13139.

It is an arithmetic number, because the mean of its divisors is an integer number (2488122).

Almost surely, 2^28837227 is an apocalyptic number.

28837227 is a deficient number, since it is larger than the sum of its proper divisors (10972725).

28837227 is a wasteful number, since it uses less digits than its factorization.

28837227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558.

The product of its digits is 75264, while the sum is 39.

The square root of 28837227 is about 5370.0304468411. The cubic root of 28837227 is about 306.6557873950.

The spelling of 28837227 in words is "twenty-eight million, eight hundred thirty-seven thousand, two hundred twenty-seven".