28464227 has 8 divisors (see below), whose sum is σ = 31173120. Its totient is φ = 25775560.

The previous prime is 28464221. The next prime is 28464259. The reversal of 28464227 is 72246482.

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 28464227 - 2²² = 24269923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28464221) 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, 2027 + ... + 7812.

It is an arithmetic number, because the mean of its divisors is an integer number (3896640).

Almost surely, 2^28464227 is an apocalyptic number.

28464227 is a deficient number, since it is larger than the sum of its proper divisors (2708893).

28464227 is a wasteful number, since it uses less digits than its factorization.

28464227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113.

The product of its digits is 43008, while the sum is 35.

The square root of 28464227 is about 5335.1876255667. The cubic root of 28464227 is about 305.3278817392.

The spelling of 28464227 in words is "twenty-eight million, four hundred sixty-four thousand, two hundred twenty-seven".