7398813 has 4 divisors (see below), whose sum is σ = 9865088. Its totient is φ = 4932540.

The previous prime is 7398803. The next prime is 7398817. The reversal of 7398813 is 3188937.

7398813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3188937 = 3 ⋅1062979.

It is a de Polignac number, because none of the positive numbers 2^k-7398813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7398817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233133 + ... + 1233138.

It is an arithmetic number, because the mean of its divisors is an integer number (2466272).

Almost surely, 2^7398813 is an apocalyptic number.

It is an amenable number.

7398813 is a deficient number, since it is larger than the sum of its proper divisors (2466275).

7398813 is a wasteful number, since it uses less digits than its factorization.

7398813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466274.

The product of its digits is 36288, while the sum is 39.

The square root of 7398813 is about 2720.0759180582. The cubic root of 7398813 is about 194.8590961057.

The spelling of 7398813 in words is "seven million, three hundred ninety-eight thousand, eight hundred thirteen".