29989357 has 2 divisors, whose sum is σ = 29989358. Its totient is φ = 29989356.

The previous prime is 29989331. The next prime is 29989367. The reversal of 29989357 is 75398992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24740676 + 5248681 = 4974^2 + 2291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29989357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29989367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14994678 + 14994679.

It is an arithmetic number, because the mean of its divisors is an integer number (14994679).

Almost surely, 2^29989357 is an apocalyptic number.

It is an amenable number.

29989357 is a deficient number, since it is larger than the sum of its proper divisors (1).

29989357 is an equidigital number, since it uses as much as digits as its factorization.

29989357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 52.

The square root of 29989357 is about 5476.2539203364. The cubic root of 29989357 is about 310.6865014986.

The spelling of 29989357 in words is "twenty-nine million, nine hundred eighty-nine thousand, three hundred fifty-seven".