70337009 has 2 divisors, whose sum is σ = 70337010. Its totient is φ = 70337008.

The previous prime is 70336999. The next prime is 70337011. The reversal of 70337009 is 90073307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61575409 + 8761600 = 7847^2 + 2960^2 .

It is an emirp because it is prime and its reverse (90073307) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70337009 is a prime.

It is a Sophie Germain prime.

Together with 70337011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70337039) 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, 35168504 + 35168505.

It is an arithmetic number, because the mean of its divisors is an integer number (35168505).

Almost surely, 2^70337009 is an apocalyptic number.

It is an amenable number.

70337009 is a deficient number, since it is larger than the sum of its proper divisors (1).

70337009 is an equidigital number, since it uses as much as digits as its factorization.

70337009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 29.

The square root of 70337009 is about 8386.7162226941. The cubic root of 70337009 is about 412.7888572430.

The spelling of 70337009 in words is "seventy million, three hundred thirty-seven thousand, nine".