29809107 has 8 divisors (see below), whose sum is σ = 44161680. Its totient is φ = 19872720.

The previous prime is 29809103. The next prime is 29809123. The reversal of 29809107 is 70190892.

It is a happy number.

It is not a de Polignac number, because 29809107 - 2² = 29809103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29809103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551994 + ... + 552047.

It is an arithmetic number, because the mean of its divisors is an integer number (5520210).

Almost surely, 2^29809107 is an apocalyptic number.

29809107 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

29809107 is a deficient number, since it is larger than the sum of its proper divisors (14352573).

29809107 is a wasteful number, since it uses less digits than its factorization.

29809107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104050 (or 1104044 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 29809107 is about 5459.7716985237. The cubic root of 29809107 is about 310.0627933845.

Adding to 29809107 its reverse (70190892), we get a palindrome (99999999).

The spelling of 29809107 in words is "twenty-nine million, eight hundred nine thousand, one hundred seven".