29428279 has 2 divisors, whose sum is σ = 29428280. Its totient is φ = 29428278.

The previous prime is 29428253. The next prime is 29428327. The reversal of 29428279 is 97282492.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29428279 - 2⁹ = 29427767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29428219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14714139 + 14714140.

It is an arithmetic number, because the mean of its divisors is an integer number (14714140).

Almost surely, 2^29428279 is an apocalyptic number.

29428279 is a deficient number, since it is larger than the sum of its proper divisors (1).

29428279 is an equidigital number, since it uses as much as digits as its factorization.

29428279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 29428279 is about 5424.7837744928. The cubic root of 29428279 is about 308.7367216612.

The spelling of 29428279 in words is "twenty-nine million, four hundred twenty-eight thousand, two hundred seventy-nine".