29628029 has 4 divisors (see below), whose sum is σ = 29716284. Its totient is φ = 29539776.

The previous prime is 29628023. The next prime is 29628041. The reversal of 29628029 is 92082692.

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 9467929 + 20160100 = 3077^2 + 4490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29628029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29627983 and 29628001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29628023) 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, 43622 + ... + 44295.

It is an arithmetic number, because the mean of its divisors is an integer number (7429071).

Almost surely, 2^29628029 is an apocalyptic number.

It is an amenable number.

29628029 is a deficient number, since it is larger than the sum of its proper divisors (88255).

29628029 is an equidigital number, since it uses as much as digits as its factorization.

29628029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88254.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 29628029 is about 5443.1635103127. The cubic root of 29628029 is about 309.4336833754.

The spelling of 29628029 in words is "twenty-nine million, six hundred twenty-eight thousand, twenty-nine".