7070809 has 8 divisors (see below), whose sum is σ = 7365960. Its totient is φ = 6779136.

The previous prime is 7070801. The next prime is 7070813. The reversal of 7070809 is 9080707.

It can be written as a sum of positive squares in 4 ways, for example, as 32400 + 7038409 = 180^2 + 2653^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7070809 - 2³ = 7070801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7070801) 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 7 ways as a sum of consecutive naturals, for example, 3777 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (920745).

Almost surely, 2^7070809 is an apocalyptic number.

It is an amenable number.

7070809 is a deficient number, since it is larger than the sum of its proper divisors (295151).

7070809 is a wasteful number, since it uses less digits than its factorization.

7070809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 7070809 is about 2659.0992835921. The cubic root of 7070809 is about 191.9359685931.

The spelling of 7070809 in words is "seven million, seventy thousand, eight hundred nine".