29990243 has 2 divisors, whose sum is σ = 29990244. Its totient is φ = 29990242.

The previous prime is 29990179. The next prime is 29990251. The reversal of 29990243 is 34209992.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29990243 - 2⁶ = 29990179 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 29990197 and 29990206.

It is not a weakly prime, because it can be changed into another prime (29990293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14995121 + 14995122.

It is an arithmetic number, because the mean of its divisors is an integer number (14995122).

Almost surely, 2^29990243 is an apocalyptic number.

29990243 is a deficient number, since it is larger than the sum of its proper divisors (1).

29990243 is an equidigital number, since it uses as much as digits as its factorization.

29990243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 29990243 is about 5476.3348144539. The cubic root of 29990243 is about 310.6895610900.

The spelling of 29990243 in words is "twenty-nine million, nine hundred ninety thousand, two hundred forty-three".