29850869 has 2 divisors, whose sum is σ = 29850870. Its totient is φ = 29850868.

The previous prime is 29850859. The next prime is 29850893. The reversal of 29850869 is 96805892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 9690769 = 4490^2 + 3113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29850869 is a prime.

It is a super-2 number, since 2×29850869² = 1782148760110322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29850859) 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, 14925434 + 14925435.

It is an arithmetic number, because the mean of its divisors is an integer number (14925435).

Almost surely, 2^29850869 is an apocalyptic number.

It is an amenable number.

29850869 is a deficient number, since it is larger than the sum of its proper divisors (1).

29850869 is an equidigital number, since it uses as much as digits as its factorization.

29850869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 29850869 is about 5463.5948788321. The cubic root of 29850869 is about 310.2075232043.

The spelling of 29850869 in words is "twenty-nine million, eight hundred fifty thousand, eight hundred sixty-nine".