70065009 has 12 divisors (see below), whose sum is σ = 115662976. Its totient is φ = 40037112.

The previous prime is 70064999. The next prime is 70065019. The reversal of 70065009 is 90056007.

70065009 is a `hidden beast` number, since 7 + 0 + 0 + 650 + 0 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (70064999) and next prime (70065019).

It is not a de Polignac number, because 70065009 - 2⁵ = 70064977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70065019) 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 in 11 ways as a sum of consecutive naturals, for example, 556009 + ... + 556134.

Almost surely, 2^70065009 is an apocalyptic number.

It is an amenable number.

70065009 is a deficient number, since it is larger than the sum of its proper divisors (45597967).

70065009 is a wasteful number, since it uses less digits than its factorization.

70065009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112156 (or 1112153 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 70065009 is about 8370.4843945855. The cubic root of 70065009 is about 412.2560717616.

The spelling of 70065009 in words is "seventy million, sixty-five thousand, nine".