29897291 has 2 divisors, whose sum is σ = 29897292. Its totient is φ = 29897290.

The previous prime is 29897267. The next prime is 29897293. The reversal of 29897291 is 19279892.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29897291 - 2²² = 25702987 is a prime.

Together with 29897293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29897293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14948645 + 14948646.

It is an arithmetic number, because the mean of its divisors is an integer number (14948646).

Almost surely, 2^29897291 is an apocalyptic number.

29897291 is a deficient number, since it is larger than the sum of its proper divisors (1).

29897291 is an equidigital number, since it uses as much as digits as its factorization.

29897291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 29897291 is about 5467.8415302567. The cubic root of 29897291 is about 310.3682443235.

The spelling of 29897291 in words is "twenty-nine million, eight hundred ninety-seven thousand, two hundred ninety-one".