29227889 has 2 divisors, whose sum is σ = 29227890. Its totient is φ = 29227888.

The previous prime is 29227883. The next prime is 29227901. The reversal of 29227889 is 98872292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25959025 + 3268864 = 5095^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 29227889 - 2⁴ = 29227873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (29227883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14613944 + 14613945.

It is an arithmetic number, because the mean of its divisors is an integer number (14613945).

Almost surely, 2^29227889 is an apocalyptic number.

It is an amenable number.

29227889 is a deficient number, since it is larger than the sum of its proper divisors (1).

29227889 is an equidigital number, since it uses as much as digits as its factorization.

29227889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 29227889 is about 5406.2823640650. The cubic root of 29227889 is about 308.0343506131.

The spelling of 29227889 in words is "twenty-nine million, two hundred twenty-seven thousand, eight hundred eighty-nine".