29485439 has 2 divisors, whose sum is σ = 29485440. Its totient is φ = 29485438.

The previous prime is 29485409. The next prime is 29485441. The reversal of 29485439 is 93458492.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29485439 is a prime.

It is a super-2 number, since 2×29485439² = 1738782226045442, which contains 22 as substring.

Together with 29485441, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29485439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29485409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14742719 + 14742720.

It is an arithmetic number, because the mean of its divisors is an integer number (14742720).

Almost surely, 2^29485439 is an apocalyptic number.

29485439 is a deficient number, since it is larger than the sum of its proper divisors (1).

29485439 is an equidigital number, since it uses as much as digits as its factorization.

29485439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The square root of 29485439 is about 5430.0496314491. The cubic root of 29485439 is about 308.9364839094.

The spelling of 29485439 in words is "twenty-nine million, four hundred eighty-five thousand, four hundred thirty-nine".