29069891 has 2 divisors, whose sum is σ = 29069892. Its totient is φ = 29069890.

The previous prime is 29069863. The next prime is 29069897. The reversal of 29069891 is 19896092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29069891 - 2¹⁰ = 29068867 is a prime.

It is not a weakly prime, because it can be changed into another prime (29069897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14534945 + 14534946.

It is an arithmetic number, because the mean of its divisors is an integer number (14534946).

Almost surely, 2^29069891 is an apocalyptic number.

29069891 is a deficient number, since it is larger than the sum of its proper divisors (1).

29069891 is an equidigital number, since it uses as much as digits as its factorization.

29069891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 29069891 is about 5391.6501184702. The cubic root of 29069891 is about 307.4782975408.

The spelling of 29069891 in words is "twenty-nine million, sixty-nine thousand, eight hundred ninety-one".