69485813 has 2 divisors, whose sum is σ = 69485814. Its totient is φ = 69485812.

The previous prime is 69485803. The next prime is 69485833. The reversal of 69485813 is 31858496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48344209 + 21141604 = 6953^2 + 4598^2 .

It is a cyclic number.

It is not a de Polignac number, because 69485813 - 2⁸ = 69485557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69485803) 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, 34742906 + 34742907.

It is an arithmetic number, because the mean of its divisors is an integer number (34742907).

Almost surely, 2^69485813 is an apocalyptic number.

It is an amenable number.

69485813 is a deficient number, since it is larger than the sum of its proper divisors (1).

69485813 is an equidigital number, since it uses as much as digits as its factorization.

69485813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 69485813 is about 8335.8150771235. The cubic root of 69485813 is about 411.1169484251.

The spelling of 69485813 in words is "sixty-nine million, four hundred eighty-five thousand, eight hundred thirteen".