29428273 has 6 divisors (see below), whose sum is σ = 34232946. Its totient is φ = 25224192.

The previous prime is 29428253. The next prime is 29428279. The reversal of 29428273 is 37282492.

It can be written as a sum of positive squares in only one way, i.e., 28976689 + 451584 = 5383^2 + 672^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29428273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29428279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300240 + ... + 300337.

It is an arithmetic number, because the mean of its divisors is an integer number (5705491).

Almost surely, 2^29428273 is an apocalyptic number.

It is an amenable number.

29428273 is a deficient number, since it is larger than the sum of its proper divisors (4804673).

29428273 is an equidigital number, since it uses as much as digits as its factorization.

29428273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600591 (or 600584 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 29428273 is about 5424.7832214753. The cubic root of 29428273 is about 308.7367006789.

The spelling of 29428273 in words is "twenty-nine million, four hundred twenty-eight thousand, two hundred seventy-three".