29021329 has 4 divisors (see below), whose sum is σ = 30728484. Its totient is φ = 27314176.

The previous prime is 29021297. The next prime is 29021339. The reversal of 29021329 is 92312092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23261329 + 5760000 = 4823^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 29021329 - 2⁵ = 29021297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29021297 and 29021306.

It is not an unprimeable number, because it can be changed into a prime (29021339) 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 3 ways as a sum of consecutive naturals, for example, 853552 + ... + 853585.

It is an arithmetic number, because the mean of its divisors is an integer number (7682121).

Almost surely, 2^29021329 is an apocalyptic number.

It is an amenable number.

29021329 is a deficient number, since it is larger than the sum of its proper divisors (1707155).

29021329 is a wasteful number, since it uses less digits than its factorization.

29021329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707154.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 29021329 is about 5387.1447910744. The cubic root of 29021329 is about 307.3069853121.

The spelling of 29021329 in words is "twenty-nine million, twenty-one thousand, three hundred twenty-nine".