29389973 has 2 divisors, whose sum is σ = 29389974. Its totient is φ = 29389972.

The previous prime is 29389967. The next prime is 29389999. The reversal of 29389973 is 37998392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26142769 + 3247204 = 5113^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 29389973 - 2²⁴ = 12612757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29382973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14694986 + 14694987.

It is an arithmetic number, because the mean of its divisors is an integer number (14694987).

Almost surely, 2^29389973 is an apocalyptic number.

It is an amenable number.

29389973 is a deficient number, since it is larger than the sum of its proper divisors (1).

29389973 is an equidigital number, since it uses as much as digits as its factorization.

29389973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 29389973 is about 5421.2519771728. The cubic root of 29389973 is about 308.6027053978.

The spelling of 29389973 in words is "twenty-nine million, three hundred eighty-nine thousand, nine hundred seventy-three".