7984479 has 4 divisors (see below), whose sum is σ = 10645976. Its totient is φ = 5322984.

The previous prime is 7984439. The next prime is 7984513. The reversal of 7984479 is 9744897.

It is a happy number.

7984479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7984479 - 2¹² = 7980383 is a prime.

It is a Duffinian number.

7984479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7984409) 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, 1330744 + ... + 1330749.

It is an arithmetic number, because the mean of its divisors is an integer number (2661494).

Almost surely, 2^7984479 is an apocalyptic number.

7984479 is a deficient number, since it is larger than the sum of its proper divisors (2661497).

7984479 is a wasteful number, since it uses less digits than its factorization.

7984479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661496.

The product of its digits is 508032, while the sum is 48.

The square root of 7984479 is about 2825.6820415609. The cubic root of 7984479 is about 199.8705745967.

The spelling of 7984479 in words is "seven million, nine hundred eighty-four thousand, four hundred seventy-nine".