29305985 has 8 divisors (see below), whose sum is σ = 35479080. Its totient is φ = 23236864.

The previous prime is 29305981. The next prime is 29305993. The reversal of 29305985 is 58950392.

It can be written as a sum of positive squares in 4 ways, for example, as 1385329 + 27920656 = 1177^2 + 5284^2 .

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 29305985 - 2² = 29305981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29305981) by changing a digit.

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, 25370 + ... + 26499.

It is an arithmetic number, because the mean of its divisors is an integer number (4434885).

Almost surely, 2^29305985 is an apocalyptic number.

It is an amenable number.

29305985 is a deficient number, since it is larger than the sum of its proper divisors (6173095).

29305985 is a wasteful number, since it uses less digits than its factorization.

29305985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51987.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 29305985 is about 5413.5002539946. The cubic root of 29305985 is about 308.3084593196.

The spelling of 29305985 in words is "twenty-nine million, three hundred five thousand, nine hundred eighty-five".