29791121 has 2 divisors, whose sum is σ = 29791122. Its totient is φ = 29791120.

The previous prime is 29791109. The next prime is 29791129. The reversal of 29791121 is 12119792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 6558721 = 4820^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 29791121 - 2¹⁰ = 29790097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29791129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14895560 + 14895561.

It is an arithmetic number, because the mean of its divisors is an integer number (14895561).

Almost surely, 2^29791121 is an apocalyptic number.

It is an amenable number.

29791121 is a deficient number, since it is larger than the sum of its proper divisors (1).

29791121 is an equidigital number, since it uses as much as digits as its factorization.

29791121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 32.

The square root of 29791121 is about 5458.1243115195. The cubic root of 29791121 is about 310.0004197011. Note that the first 3 decimals are identical.

The spelling of 29791121 in words is "twenty-nine million, seven hundred ninety-one thousand, one hundred twenty-one".