69920243 has 2 divisors, whose sum is σ = 69920244. Its totient is φ = 69920242.

The previous prime is 69920239. The next prime is 69920261. The reversal of 69920243 is 34202996.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69920243 - 2² = 69920239 is a prime.

It is not a weakly prime, because it can be changed into another prime (69920743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34960121 + 34960122.

It is an arithmetic number, because the mean of its divisors is an integer number (34960122).

Almost surely, 2^69920243 is an apocalyptic number.

69920243 is a deficient number, since it is larger than the sum of its proper divisors (1).

69920243 is an equidigital number, since it uses as much as digits as its factorization.

69920243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 69920243 is about 8361.8325144671. The cubic root of 69920243 is about 411.9719460428.

The spelling of 69920243 in words is "sixty-nine million, nine hundred twenty thousand, two hundred forty-three".