70646009 has 8 divisors (see below), whose sum is σ = 84987840. Its totient is φ = 57366576.

The previous prime is 70646003. The next prime is 70646021. The reversal of 70646009 is 90064607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70646009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70646003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265454 + ... + 265719.

It is an arithmetic number, because the mean of its divisors is an integer number (10623480).

Almost surely, 2^70646009 is an apocalyptic number.

It is an amenable number.

70646009 is a deficient number, since it is larger than the sum of its proper divisors (14341831).

70646009 is a wasteful number, since it uses less digits than its factorization.

70646009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531199.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 70646009 is about 8405.1180241565. The cubic root of 70646009 is about 413.3924533166.

The spelling of 70646009 in words is "seventy million, six hundred forty-six thousand, nine".