7266813 has 8 divisors (see below), whose sum is σ = 9765888. Its totient is φ = 4806144.

The previous prime is 7266773. The next prime is 7266817. The reversal of 7266813 is 3186627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7266813 - 2⁸ = 7266557 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7266817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9156 + ... + 9917.

It is an arithmetic number, because the mean of its divisors is an integer number (1220736).

Almost surely, 2^7266813 is an apocalyptic number.

It is an amenable number.

7266813 is a deficient number, since it is larger than the sum of its proper divisors (2499075).

7266813 is a wasteful number, since it uses less digits than its factorization.

7266813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19203.

The product of its digits is 12096, while the sum is 33.

The square root of 7266813 is about 2695.7026913219. The cubic root of 7266813 is about 193.6933281355.

The spelling of 7266813 in words is "seven million, two hundred sixty-six thousand, eight hundred thirteen".