70800109 has 2 divisors, whose sum is σ = 70800110. Its totient is φ = 70800108.

The previous prime is 70800089. The next prime is 70800113. The reversal of 70800109 is 90100807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65254084 + 5546025 = 8078^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 70800109 - 2¹¹ = 70798061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70800139) 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, 35400054 + 35400055.

It is an arithmetic number, because the mean of its divisors is an integer number (35400055).

Almost surely, 2^70800109 is an apocalyptic number.

It is an amenable number.

70800109 is a deficient number, since it is larger than the sum of its proper divisors (1).

70800109 is an equidigital number, since it uses as much as digits as its factorization.

70800109 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 70800109 is about 8414.2800642717. The cubic root of 70800109 is about 413.6928124123.

The spelling of 70800109 in words is "seventy million, eight hundred thousand, one hundred nine".