29065021 has 4 divisors (see below), whose sum is σ = 29172544. Its totient is φ = 28957500.

The previous prime is 29065013. The next prime is 29065051. The reversal of 29065021 is 12056092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29065021 - 2³ = 29065013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29065051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53355 + ... + 53896.

It is an arithmetic number, because the mean of its divisors is an integer number (7293136).

Almost surely, 2^29065021 is an apocalyptic number.

It is an amenable number.

29065021 is a deficient number, since it is larger than the sum of its proper divisors (107523).

29065021 is a wasteful number, since it uses less digits than its factorization.

29065021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107522.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 29065021 is about 5391.1984752929. The cubic root of 29065021 is about 307.4611262467.

The spelling of 29065021 in words is "twenty-nine million, sixty-five thousand, twenty-one".