29245639 has 2 divisors, whose sum is σ = 29245640. Its totient is φ = 29245638.

The previous prime is 29245603. The next prime is 29245649. The reversal of 29245639 is 93654292.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29245639 - 2¹⁷ = 29114567 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29245649) 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 as a sum of consecutive naturals, namely, 14622819 + 14622820.

It is an arithmetic number, because the mean of its divisors is an integer number (14622820).

Almost surely, 2^29245639 is an apocalyptic number.

29245639 is a deficient number, since it is larger than the sum of its proper divisors (1).

29245639 is an equidigital number, since it uses as much as digits as its factorization.

29245639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 29245639 is about 5407.9237235745. The cubic root of 29245639 is about 308.0966940741.

The spelling of 29245639 in words is "twenty-nine million, two hundred forty-five thousand, six hundred thirty-nine".