7023581 has 2 divisors, whose sum is σ = 7023582. Its totient is φ = 7023580.

The previous prime is 7023563. The next prime is 7023589. The reversal of 7023581 is 1853207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6996025 + 27556 = 2645^2 + 166^2 .

It is an emirp because it is prime and its reverse (1853207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7023581 - 2⁶ = 7023517 is a prime.

It is a super-2 number, since 2×7023581² = 98661380127122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7023581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7023589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3511790 + 3511791.

It is an arithmetic number, because the mean of its divisors is an integer number (3511791).

Almost surely, 2^7023581 is an apocalyptic number.

It is an amenable number.

7023581 is a deficient number, since it is larger than the sum of its proper divisors (1).

7023581 is an equidigital number, since it uses as much as digits as its factorization.

7023581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 7023581 is about 2650.2039544156. The cubic root of 7023581 is about 191.5076814767.

Adding to 7023581 its reverse (1853207), we get a palindrome (8876788).

The spelling of 7023581 in words is "seven million, twenty-three thousand, five hundred eighty-one".