29189257 has 2 divisors, whose sum is σ = 29189258. Its totient is φ = 29189256.

The previous prime is 29189233. The next prime is 29189261. The reversal of 29189257 is 75298192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19971961 + 9217296 = 4469^2 + 3036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29189257 is a prime.

It is not a weakly prime, because it can be changed into another prime (29189207) 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, 14594628 + 14594629.

It is an arithmetic number, because the mean of its divisors is an integer number (14594629).

Almost surely, 2^29189257 is an apocalyptic number.

It is an amenable number.

29189257 is a deficient number, since it is larger than the sum of its proper divisors (1).

29189257 is an equidigital number, since it uses as much as digits as its factorization.

29189257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 43.

The square root of 29189257 is about 5402.7083023239. The cubic root of 29189257 is about 307.8985758419.

The spelling of 29189257 in words is "twenty-nine million, one hundred eighty-nine thousand, two hundred fifty-seven".