28462229 has 2 divisors, whose sum is σ = 28462230. Its totient is φ = 28462228.

The previous prime is 28462223. The next prime is 28462243. The reversal of 28462229 is 92226482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28462225 + 4 = 5335^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 28462229 - 2⁸ = 28461973 is a prime.

It is a Chen prime.

It is equal to p_1768391 and since 28462229 and 1768391 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28462223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14231114 + 14231115.

It is an arithmetic number, because the mean of its divisors is an integer number (14231115).

Almost surely, 2^28462229 is an apocalyptic number.

It is an amenable number.

28462229 is a deficient number, since it is larger than the sum of its proper divisors (1).

28462229 is an equidigital number, since it uses as much as digits as its factorization.

28462229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 28462229 is about 5335.0003748828. Note that the first 3 decimals coincide. The cubic root of 28462229 is about 305.3207375744.

The spelling of 28462229 in words is "twenty-eight million, four hundred sixty-two thousand, two hundred twenty-nine".