7904579 has 4 divisors (see below), whose sum is σ = 8053776. Its totient is φ = 7755384.

The previous prime is 7904573. The next prime is 7904581. The reversal of 7904579 is 9754097.

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: 9754097 = 641 ⋅15217.

It is not a de Polignac number, because 7904579 - 2¹⁶ = 7839043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7904573) 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, 74519 + ... + 74624.

It is an arithmetic number, because the mean of its divisors is an integer number (2013444).

Almost surely, 2^7904579 is an apocalyptic number.

7904579 is a deficient number, since it is larger than the sum of its proper divisors (149197).

7904579 is a wasteful number, since it uses less digits than its factorization.

7904579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149196.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 7904579 is about 2811.5083140549. The cubic root of 7904579 is about 199.2016423659.

The spelling of 7904579 in words is "seven million, nine hundred four thousand, five hundred seventy-nine".