8040013 has 2 divisors, whose sum is σ = 8040014. Its totient is φ = 8040012.

The previous prime is 8039987. The next prime is 8040017. The reversal of 8040013 is 3100408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5207524 + 2832489 = 2282^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 8040013 - 2⁵ = 8039981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8040017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4020006 + 4020007.

It is an arithmetic number, because the mean of its divisors is an integer number (4020007).

Almost surely, 2^8040013 is an apocalyptic number.

It is an amenable number.

8040013 is a deficient number, since it is larger than the sum of its proper divisors (1).

8040013 is an equidigital number, since it uses as much as digits as its factorization.

8040013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 8040013 is about 2835.4916681239. The cubic root of 8040013 is about 200.3328872895.

The spelling of 8040013 in words is "eight million, forty thousand, thirteen".