29028839 has 4 divisors (see below), whose sum is σ = 33175824. Its totient is φ = 24881856.

The previous prime is 29028823. The next prime is 29028841. The reversal of 29028839 is 93882092.

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

It is a cyclic number.

It is not a de Polignac number, because 29028839 - 2⁴ = 29028823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29028796 and 29028805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29028859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2073482 + ... + 2073495.

It is an arithmetic number, because the mean of its divisors is an integer number (8293956).

Almost surely, 2^29028839 is an apocalyptic number.

29028839 is a deficient number, since it is larger than the sum of its proper divisors (4146985).

29028839 is an equidigital number, since it uses as much as digits as its factorization.

29028839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146984.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 29028839 is about 5387.8417757020. The cubic root of 29028839 is about 307.3334908340. Note that the first 3 decimals are identical.

The spelling of 29028839 in words is "twenty-nine million, twenty-eight thousand, eight hundred thirty-nine".