7072009 has 8 divisors (see below), whose sum is σ = 8507840. Its totient is φ = 5742576.

The previous prime is 7072007. The next prime is 7072031. The reversal of 7072009 is 9002707.

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

It is not a de Polignac number, because 7072009 - 2¹ = 7072007 is a prime.

It is a super-2 number, since 2×7072009² = 100026622592162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7072003) 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, 26454 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (1063480).

Almost surely, 2^7072009 is an apocalyptic number.

It is an amenable number.

7072009 is a deficient number, since it is larger than the sum of its proper divisors (1435831).

7072009 is a wasteful number, since it uses less digits than its factorization.

7072009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53199.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 7072009 is about 2659.3249143345. The cubic root of 7072009 is about 191.9468259144.

The spelling of 7072009 in words is "seven million, seventy-two thousand, nine".