29227381 has 2 divisors, whose sum is σ = 29227382. Its totient is φ = 29227380.

The previous prime is 29227351. The next prime is 29227417. The reversal of 29227381 is 18372292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23126481 + 6100900 = 4809^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 29227381 - 2⁵ = 29227349 is a prime.

It is a super-2 number, since 2×29227381² = 1708479600238322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29227351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14613690 + 14613691.

It is an arithmetic number, because the mean of its divisors is an integer number (14613691).

Almost surely, 2^29227381 is an apocalyptic number.

It is an amenable number.

29227381 is a deficient number, since it is larger than the sum of its proper divisors (1).

29227381 is an equidigital number, since it uses as much as digits as its factorization.

29227381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 29227381 is about 5406.2353814831. The cubic root of 29227381 is about 308.0325659893.

The spelling of 29227381 in words is "twenty-nine million, two hundred twenty-seven thousand, three hundred eighty-one".