29880247 has 2 divisors, whose sum is σ = 29880248. Its totient is φ = 29880246.

The previous prime is 29880241. The next prime is 29880259. The reversal of 29880247 is 74208892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29880247 - 2³ = 29880239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29880241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14940123 + 14940124.

It is an arithmetic number, because the mean of its divisors is an integer number (14940124).

Almost surely, 2^29880247 is an apocalyptic number.

29880247 is a deficient number, since it is larger than the sum of its proper divisors (1).

29880247 is an equidigital number, since it uses as much as digits as its factorization.

29880247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 29880247 is about 5466.2827405834. The cubic root of 29880247 is about 310.3092543422.

The spelling of 29880247 in words is "twenty-nine million, eight hundred eighty thousand, two hundred forty-seven".