69982513 has 2 divisors, whose sum is σ = 69982514. Its totient is φ = 69982512.

The previous prime is 69982463. The next prime is 69982541. The reversal of 69982513 is 31528996.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65415744 + 4566769 = 8088^2 + 2137^2 .

It is a cyclic number.

It is not a de Polignac number, because 69982513 - 2²⁵ = 36428081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69982513.

It is not a weakly prime, because it can be changed into another prime (69982553) 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, 34991256 + 34991257.

It is an arithmetic number, because the mean of its divisors is an integer number (34991257).

Almost surely, 2^69982513 is an apocalyptic number.

It is an amenable number.

69982513 is a deficient number, since it is larger than the sum of its proper divisors (1).

69982513 is an equidigital number, since it uses as much as digits as its factorization.

69982513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 69982513 is about 8365.5551519310. Note that the first 3 decimals coincide. The cubic root of 69982513 is about 412.0942085913.

The spelling of 69982513 in words is "sixty-nine million, nine hundred eighty-two thousand, five hundred thirteen".