29085309 has 12 divisors (see below), whose sum is σ = 45831552. Its totient is φ = 17627400.

The previous prime is 29085299. The next prime is 29085313. The reversal of 29085309 is 90358092.

It is not a de Polignac number, because 29085309 - 2¹³ = 29077117 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29085319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146797 + ... + 146994.

It is an arithmetic number, because the mean of its divisors is an integer number (3819296).

Almost surely, 2^29085309 is an apocalyptic number.

It is an amenable number.

29085309 is a deficient number, since it is larger than the sum of its proper divisors (16746243).

29085309 is a wasteful number, since it uses less digits than its factorization.

29085309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293808 (or 293805 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 29085309 is about 5393.0797323978. The cubic root of 29085309 is about 307.5326477333.

The spelling of 29085309 in words is "twenty-nine million, eighty-five thousand, three hundred nine".