29285905 has 16 divisors (see below), whose sum is σ = 38444544. Its totient is φ = 21239680.

The previous prime is 29285873. The next prime is 29285909. The reversal of 29285905 is 50958292.

It is not a de Polignac number, because 29285905 - 2⁵ = 29285873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29285909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33504 + ... + 34366.

It is an arithmetic number, because the mean of its divisors is an integer number (2402784).

Almost surely, 2^29285905 is an apocalyptic number.

It is an amenable number.

29285905 is a deficient number, since it is larger than the sum of its proper divisors (9158639).

29285905 is a wasteful number, since it uses less digits than its factorization.

29285905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 29285905 is about 5411.6453135807. The cubic root of 29285905 is about 308.2380271951.

The spelling of 29285905 in words is "twenty-nine million, two hundred eighty-five thousand, nine hundred five".