29806825 has 12 divisors (see below), whose sum is σ = 37028880. Its totient is φ = 23801360.

The previous prime is 29806811. The next prime is 29806837. The reversal of 29806825 is 52860892.

It is not a de Polignac number, because 29806825 - 2⁹ = 29806313 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23046 + ... + 24304.

It is an arithmetic number, because the mean of its divisors is an integer number (3085740).

Almost surely, 2^29806825 is an apocalyptic number.

29806825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29806825 is a deficient number, since it is larger than the sum of its proper divisors (7222055).

29806825 is a wasteful number, since it uses less digits than its factorization.

29806825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2211 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 29806825 is about 5459.5627114266. The cubic root of 29806825 is about 310.0548810223.

The spelling of 29806825 in words is "twenty-nine million, eight hundred six thousand, eight hundred twenty-five".