7428263 has 4 divisors (see below), whose sum is σ = 7684440. Its totient is φ = 7172088.

The previous prime is 7428227. The next prime is 7428271. The reversal of 7428263 is 3628247.

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

It is a cyclic number.

It is not a de Polignac number, because 7428263 - 2⁸ = 7428007 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 (7428203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128045 + ... + 128102.

It is an arithmetic number, because the mean of its divisors is an integer number (1921110).

Almost surely, 2^7428263 is an apocalyptic number.

7428263 is a deficient number, since it is larger than the sum of its proper divisors (256177).

7428263 is a wasteful number, since it uses less digits than its factorization.

7428263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256176.

The product of its digits is 16128, while the sum is 32.

The square root of 7428263 is about 2725.4839937156. The cubic root of 7428263 is about 195.1172908215.

The spelling of 7428263 in words is "seven million, four hundred twenty-eight thousand, two hundred sixty-three".