29056021 has 8 divisors (see below), whose sum is σ = 30272000. Its totient is φ = 27857520.

The previous prime is 29056019. The next prime is 29056037. The reversal of 29056021 is 12065092.

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 29056021 - 2¹ = 29056019 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 (29056721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (3784000).

Almost surely, 2^29056021 is an apocalyptic number.

It is an amenable number.

29056021 is a deficient number, since it is larger than the sum of its proper divisors (1215979).

29056021 is a wasteful number, since it uses less digits than its factorization.

29056021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739.

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

The square root of 29056021 is about 5390.3637168562. The cubic root of 29056021 is about 307.4293878007.

The spelling of 29056021 in words is "twenty-nine million, fifty-six thousand, twenty-one".