54679439 has 4 divisors (see below), whose sum is σ = 54725160. Its totient is φ = 54633720.

The previous prime is 54679433. The next prime is 54679447. The reversal of 54679439 is 93497645.

It is a happy number.

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 54679439 - 2⁴ = 54679423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54679393 and 54679402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54679433) 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, 21017 + ... + 23474.

It is an arithmetic number, because the mean of its divisors is an integer number (13681290).

Almost surely, 2^54679439 is an apocalyptic number.

54679439 is a deficient number, since it is larger than the sum of its proper divisors (45721).

54679439 is a wasteful number, since it uses less digits than its factorization.

54679439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45720.

The product of its digits is 816480, while the sum is 47.

The square root of 54679439 is about 7394.5546857130. The cubic root of 54679439 is about 379.5549707062.

The spelling of 54679439 in words is "fifty-four million, six hundred seventy-nine thousand, four hundred thirty-nine".