69108973 has 2 divisors, whose sum is σ = 69108974. Its totient is φ = 69108972.

The previous prime is 69108937. The next prime is 69108989. The reversal of 69108973 is 37980196.

Together with previous prime (69108937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57562569 + 11546404 = 7587^2 + 3398^2 .

It is a cyclic number.

It is not a de Polignac number, because 69108973 - 2⁹ = 69108461 is a prime.

It is a super-2 number, since 2×69108973² = 9552100298229458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69108673) 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, 34554486 + 34554487.

It is an arithmetic number, because the mean of its divisors is an integer number (34554487).

Almost surely, 2^69108973 is an apocalyptic number.

It is an amenable number.

69108973 is a deficient number, since it is larger than the sum of its proper divisors (1).

69108973 is an equidigital number, since it uses as much as digits as its factorization.

69108973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 69108973 is about 8313.1806788978. The cubic root of 69108973 is about 410.3724020779.

The spelling of 69108973 in words is "sixty-nine million, one hundred eight thousand, nine hundred seventy-three".