70008109 has 2 divisors, whose sum is σ = 70008110. Its totient is φ = 70008108.

The previous prime is 70008077. The next prime is 70008143. The reversal of 70008109 is 90180007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63520900 + 6487209 = 7970^2 + 2547^2 .

It is a cyclic number.

It is not a de Polignac number, because 70008109 - 2⁵ = 70008077 is a prime.

It is a super-2 number, since 2×70008109² = 9802270651511762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70008209) 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, 35004054 + 35004055.

It is an arithmetic number, because the mean of its divisors is an integer number (35004055).

Almost surely, 2^70008109 is an apocalyptic number.

It is an amenable number.

70008109 is a deficient number, since it is larger than the sum of its proper divisors (1).

70008109 is an equidigital number, since it uses as much as digits as its factorization.

70008109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 70008109 is about 8367.0848567467. The cubic root of 70008109 is about 412.1444434152.

The spelling of 70008109 in words is "seventy million, eight thousand, one hundred nine".