7408813 has 2 divisors, whose sum is σ = 7408814. Its totient is φ = 7408812.

The previous prime is 7408789. The next prime is 7408853. The reversal of 7408813 is 3188047.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5031049 + 2377764 = 2243^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 7408813 - 2⁵ = 7408781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7408853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3704406 + 3704407.

It is an arithmetic number, because the mean of its divisors is an integer number (3704407).

Almost surely, 2^7408813 is an apocalyptic number.

It is an amenable number.

7408813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7408813 is an equidigital number, since it uses as much as digits as its factorization.

7408813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 7408813 is about 2721.9134813583. The cubic root of 7408813 is about 194.9468450341.

The spelling of 7408813 in words is "seven million, four hundred eight thousand, eight hundred thirteen".