29769989 has 2 divisors, whose sum is σ = 29769990. Its totient is φ = 29769988.

The previous prime is 29769973. The next prime is 29770003. The reversal of 29769989 is 98996792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16337764 + 13432225 = 4042^2 + 3665^2 .

It is a cyclic number.

It is not a de Polignac number, because 29769989 - 2⁴ = 29769973 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 (29769959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14884994 + 14884995.

It is an arithmetic number, because the mean of its divisors is an integer number (14884995).

Almost surely, 2^29769989 is an apocalyptic number.

It is an amenable number.

29769989 is a deficient number, since it is larger than the sum of its proper divisors (1).

29769989 is an equidigital number, since it uses as much as digits as its factorization.

29769989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4408992, while the sum is 59.

The square root of 29769989 is about 5456.1881382518. The cubic root of 29769989 is about 309.9271039144.

The spelling of 29769989 in words is "twenty-nine million, seven hundred sixty-nine thousand, nine hundred eighty-nine".