7009823 has 2 divisors, whose sum is σ = 7009824. Its totient is φ = 7009822.

The previous prime is 7009801. The next prime is 7009859. The reversal of 7009823 is 3289007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7009823 - 2¹² = 7005727 is a prime.

It is a super-3 number, since 3×7009823³ (a number of 22 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7002823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3504911 + 3504912.

It is an arithmetic number, because the mean of its divisors is an integer number (3504912).

Almost surely, 2^7009823 is an apocalyptic number.

7009823 is a deficient number, since it is larger than the sum of its proper divisors (1).

7009823 is an equidigital number, since it uses as much as digits as its factorization.

7009823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7009823 is about 2647.6070327751. The cubic root of 7009823 is about 191.3825560880.

The spelling of 7009823 in words is "seven million, nine thousand, eight hundred twenty-three".