29904705 has 12 divisors (see below), whose sum is σ = 51834900. Its totient is φ = 15949152.

The previous prime is 29904673. The next prime is 29904731. The reversal of 29904705 is 50740992.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 6517809 = 4836^2 + 2553^2 .

It is not a de Polignac number, because 29904705 - 2⁵ = 29904673 is a prime.

It is a super-2 number, since 2×29904705² = 1788582762274050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29904705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332230 + ... + 332319.

It is an arithmetic number, because the mean of its divisors is an integer number (4319575).

Almost surely, 2^29904705 is an apocalyptic number.

It is an amenable number.

29904705 is a deficient number, since it is larger than the sum of its proper divisors (21930195).

29904705 is a wasteful number, since it uses less digits than its factorization.

29904705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664560 (or 664557 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 29904705 is about 5468.5194522832. The cubic root of 29904705 is about 310.3938974836.

The spelling of 29904705 in words is "twenty-nine million, nine hundred four thousand, seven hundred five".