29091047 has 2 divisors, whose sum is σ = 29091048. Its totient is φ = 29091046.

The previous prime is 29090987. The next prime is 29091079. The reversal of 29091047 is 74019092.

It is an a-pointer prime, because the next prime (29091079) can be obtained adding 29091047 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29091047 - 2⁶ = 29090983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29091247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14545523 + 14545524.

It is an arithmetic number, because the mean of its divisors is an integer number (14545524).

Almost surely, 2^29091047 is an apocalyptic number.

29091047 is a deficient number, since it is larger than the sum of its proper divisors (1).

29091047 is an equidigital number, since it uses as much as digits as its factorization.

29091047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 29091047 is about 5393.6116842057. The cubic root of 29091047 is about 307.5528699275.

The spelling of 29091047 in words is "twenty-nine million, ninety-one thousand, forty-seven".