29144389 has 2 divisors, whose sum is σ = 29144390. Its totient is φ = 29144388.

The previous prime is 29144387. The next prime is 29144393. The reversal of 29144389 is 98344192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15880225 + 13264164 = 3985^2 + 3642^2 .

It is a cyclic number.

It is not a de Polignac number, because 29144389 - 2¹ = 29144387 is a prime.

Together with 29144387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29144387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14572194 + 14572195.

It is an arithmetic number, because the mean of its divisors is an integer number (14572195).

Almost surely, 2^29144389 is an apocalyptic number.

It is an amenable number.

29144389 is a deficient number, since it is larger than the sum of its proper divisors (1).

29144389 is an equidigital number, since it uses as much as digits as its factorization.

29144389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 29144389 is about 5398.5543435257. The cubic root of 29144389 is about 307.7407337771.

The spelling of 29144389 in words is "twenty-nine million, one hundred forty-four thousand, three hundred eighty-nine".