69444899 has 2 divisors, whose sum is σ = 69444900. Its totient is φ = 69444898.

The previous prime is 69444883. The next prime is 69444911. The reversal of 69444899 is 99844496.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69444899 - 2⁴ = 69444883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69444899.

It is not a weakly prime, because it can be changed into another prime (69444499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34722449 + 34722450.

It is an arithmetic number, because the mean of its divisors is an integer number (34722450).

Almost surely, 2^69444899 is an apocalyptic number.

69444899 is a deficient number, since it is larger than the sum of its proper divisors (1).

69444899 is an equidigital number, since it uses as much as digits as its factorization.

69444899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The square root of 69444899 is about 8333.3606066220. The cubic root of 69444899 is about 411.0362425441.

The spelling of 69444899 in words is "sixty-nine million, four hundred forty-four thousand, eight hundred ninety-nine".