70027209 has 12 divisors (see below), whose sum is σ = 115600576. Its totient is φ = 40015512.

The previous prime is 70027193. The next prime is 70027211. The reversal of 70027209 is 90272007.

It is not a de Polignac number, because 70027209 - 2⁴ = 70027193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70027219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555709 + ... + 555834.

Almost surely, 2^70027209 is an apocalyptic number.

It is an amenable number.

70027209 is a deficient number, since it is larger than the sum of its proper divisors (45573367).

70027209 is a wasteful number, since it uses less digits than its factorization.

70027209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111556 (or 1111553 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 70027209 is about 8368.2261561217. The cubic root of 70027209 is about 412.1819211836.

The spelling of 70027209 in words is "seventy million, twenty-seven thousand, two hundred nine".