70603009 has 2 divisors, whose sum is σ = 70603010. Its totient is φ = 70603008.

The previous prime is 70603007. The next prime is 70603019. The reversal of 70603009 is 90030607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45603009 + 25000000 = 6753^2 + 5000^2 .

It is a cyclic number.

It is not a de Polignac number, because 70603009 - 2¹ = 70603007 is a prime.

Together with 70603007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70603003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35301504 + 35301505.

It is an arithmetic number, because the mean of its divisors is an integer number (35301505).

Almost surely, 2^70603009 is an apocalyptic number.

It is an amenable number.

70603009 is a deficient number, since it is larger than the sum of its proper divisors (1).

70603009 is an equidigital number, since it uses as much as digits as its factorization.

70603009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 70603009 is about 8402.5596695293. The cubic root of 70603009 is about 413.3085633064.

The spelling of 70603009 in words is "seventy million, six hundred three thousand, nine".