7657243 has 10 divisors (see below), whose sum is σ = 8439020. Its totient is φ = 6947820.

The previous prime is 7657159. The next prime is 7657253. The reversal of 7657243 is 3427567.

It is a happy number.

7657243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7657243 - 2⁹ = 7656731 is a prime.

It is a super-2 number, since 2×7657243² = 117266740722098, which contains 22 as substring.

It is a Duffinian number.

7657243 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7657199 and 7657208.

It is not an unprimeable number, because it can be changed into a prime (7657253) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14380 + ... + 14902.

It is an arithmetic number, because the mean of its divisors is an integer number (843902).

Almost surely, 2^7657243 is an apocalyptic number.

7657243 is a deficient number, since it is larger than the sum of its proper divisors (781777).

7657243 is an frugal number, since it uses more digits than its factorization.

7657243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 534 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 7657243 is about 2767.1723834991. The cubic root of 7657243 is about 197.1018995790.

It can be divided in two parts, 765 and 7243, that added together give a palindrome (8008).

The spelling of 7657243 in words is "seven million, six hundred fifty-seven thousand, two hundred forty-three".