7268645 has 4 divisors (see below), whose sum is σ = 8722380. Its totient is φ = 5814912.

The previous prime is 7268641. The next prime is 7268693. The reversal of 7268645 is 5468627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1324801 + 5943844 = 1151^2 + 2438^2 .

It is a cyclic number.

It is not a de Polignac number, because 7268645 - 2² = 7268641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7268599 and 7268608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7268641) 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, 726860 + ... + 726869.

It is an arithmetic number, because the mean of its divisors is an integer number (2180595).

Almost surely, 2^7268645 is an apocalyptic number.

It is an amenable number.

7268645 is a deficient number, since it is larger than the sum of its proper divisors (1453735).

7268645 is a wasteful number, since it uses less digits than its factorization.

7268645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453734.

The product of its digits is 80640, while the sum is 38.

The square root of 7268645 is about 2696.0424699919. The cubic root of 7268645 is about 193.7096037876.

The spelling of 7268645 in words is "seven million, two hundred sixty-eight thousand, six hundred forty-five".