29423389 has 2 divisors, whose sum is σ = 29423390. Its totient is φ = 29423388.

The previous prime is 29423377. The next prime is 29423423. The reversal of 29423389 is 98332492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23863225 + 5560164 = 4885^2 + 2358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29423389 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 (29423369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14711694 + 14711695.

It is an arithmetic number, because the mean of its divisors is an integer number (14711695).

Almost surely, 2^29423389 is an apocalyptic number.

It is an amenable number.

29423389 is a deficient number, since it is larger than the sum of its proper divisors (1).

29423389 is an equidigital number, since it uses as much as digits as its factorization.

29423389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 29423389 is about 5424.3330465597. Note that the first 3 decimals coincide. The cubic root of 29423389 is about 308.7196201265.

The spelling of 29423389 in words is "twenty-nine million, four hundred twenty-three thousand, three hundred eighty-nine".