29904805 has 8 divisors (see below), whose sum is σ = 41012352. Its totient is φ = 20506128.

The previous prime is 29904793. The next prime is 29904839. The reversal of 29904805 is 50840992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29904805 - 2¹¹ = 29902757 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 427177 + ... + 427246.

It is an arithmetic number, because the mean of its divisors is an integer number (5126544).

Almost surely, 2^29904805 is an apocalyptic number.

It is an amenable number.

29904805 is a deficient number, since it is larger than the sum of its proper divisors (11107547).

29904805 is an equidigital number, since it uses as much as digits as its factorization.

29904805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854435.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 29904805 is about 5468.5285955182. The cubic root of 29904805 is about 310.3942434643.

The spelling of 29904805 in words is "twenty-nine million, nine hundred four thousand, eight hundred five".