69441913 has 2 divisors, whose sum is σ = 69441914. Its totient is φ = 69441912.

The previous prime is 69441901. The next prime is 69441919. The reversal of 69441913 is 31914496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66389904 + 3052009 = 8148^2 + 1747^2 .

It is a cyclic number.

It is not a de Polignac number, because 69441913 - 2⁹ = 69441401 is a prime.

It is not a weakly prime, because it can be changed into another prime (69441919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34720956 + 34720957.

It is an arithmetic number, because the mean of its divisors is an integer number (34720957).

Almost surely, 2^69441913 is an apocalyptic number.

It is an amenable number.

69441913 is a deficient number, since it is larger than the sum of its proper divisors (1).

69441913 is an equidigital number, since it uses as much as digits as its factorization.

69441913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 69441913 is about 8333.1814452825. The cubic root of 69441913 is about 411.0303511980.

The spelling of 69441913 in words is "sixty-nine million, four hundred forty-one thousand, nine hundred thirteen".