7538479 has 4 divisors (see below), whose sum is σ = 8118376. Its totient is φ = 6958584.

The previous prime is 7538477. The next prime is 7538483. The reversal of 7538479 is 9748357.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9748357 = 1049 ⋅9293.

It is a cyclic number.

It is not a de Polignac number, because 7538479 - 2¹ = 7538477 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 (7538473) 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, 289929 + ... + 289954.

It is an arithmetic number, because the mean of its divisors is an integer number (2029594).

Almost surely, 2^7538479 is an apocalyptic number.

7538479 is a deficient number, since it is larger than the sum of its proper divisors (579897).

7538479 is a wasteful number, since it uses less digits than its factorization.

7538479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579896.

The product of its digits is 211680, while the sum is 43.

The square root of 7538479 is about 2745.6290718158. The cubic root of 7538479 is about 196.0775671746.

The spelling of 7538479 in words is "seven million, five hundred thirty-eight thousand, four hundred seventy-nine".