29382921 has 12 divisors (see below), whose sum is σ = 43589572. Its totient is φ = 19058976.

The previous prime is 29382901. The next prime is 29382923. The reversal of 29382921 is 12928392.

It can be written as a sum of positive squares in 2 ways, for example, as 19927296 + 9455625 = 4464^2 + 3075^2 .

It is not a de Polignac number, because 29382921 - 2¹⁰ = 29381897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29382923) 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, 43786 + ... + 44451.

Almost surely, 2^29382921 is an apocalyptic number.

It is an amenable number.

29382921 is a deficient number, since it is larger than the sum of its proper divisors (14206651).

29382921 is a wasteful number, since it uses less digits than its factorization.

29382921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88280 (or 88277 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 29382921 is about 5420.6015348852. The cubic root of 29382921 is about 308.5780207844.

It can be divided in two parts, 29382 and 921, that added together give a palindrome (30303).

The spelling of 29382921 in words is "twenty-nine million, three hundred eighty-two thousand, nine hundred twenty-one".