29027639 has 2 divisors, whose sum is σ = 29027640. Its totient is φ = 29027638.

The previous prime is 29027597. The next prime is 29027641. The reversal of 29027639 is 93672092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29027639 - 2¹² = 29023543 is a prime.

Together with 29027641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29027659) 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 as a sum of consecutive naturals, namely, 14513819 + 14513820.

It is an arithmetic number, because the mean of its divisors is an integer number (14513820).

Almost surely, 2^29027639 is an apocalyptic number.

29027639 is a deficient number, since it is larger than the sum of its proper divisors (1).

29027639 is an equidigital number, since it uses as much as digits as its factorization.

29027639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 29027639 is about 5387.7304127063. The cubic root of 29027639 is about 307.3292559044.

The spelling of 29027639 in words is "twenty-nine million, twenty-seven thousand, six hundred thirty-nine".