7052809 has 2 divisors, whose sum is σ = 7052810. Its totient is φ = 7052808.

The previous prime is 7052753. The next prime is 7052813. The reversal of 7052809 is 9082507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7038409 + 14400 = 2653^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 7052809 - 2¹¹ = 7050761 is a prime.

It is a super-3 number, since 3×7052809³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (7052609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3526404 + 3526405.

It is an arithmetic number, because the mean of its divisors is an integer number (3526405).

Almost surely, 2^7052809 is an apocalyptic number.

It is an amenable number.

7052809 is a deficient number, since it is larger than the sum of its proper divisors (1).

7052809 is an equidigital number, since it uses as much as digits as its factorization.

7052809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7052809 is about 2655.7125220927. The cubic root of 7052809 is about 191.7729611621.

The spelling of 7052809 in words is "seven million, fifty-two thousand, eight hundred nine".