29869109 has 4 divisors (see below), whose sum is σ = 29959680. Its totient is φ = 29778540.

The previous prime is 29869087. The next prime is 29869117. The reversal of 29869109 is 90196892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29869109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 29869109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29869009) 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 in 3 ways as a sum of consecutive naturals, for example, 44789 + ... + 45450.

It is an arithmetic number, because the mean of its divisors is an integer number (7489920).

Almost surely, 2^29869109 is an apocalyptic number.

It is an amenable number.

29869109 is a deficient number, since it is larger than the sum of its proper divisors (90571).

29869109 is an equidigital number, since it uses as much as digits as its factorization.

29869109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90570.

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

The square root of 29869109 is about 5465.2638545637. The cubic root of 29869109 is about 310.2706931482.

The spelling of 29869109 in words is "twenty-nine million, eight hundred sixty-nine thousand, one hundred nine".