2417679821 has 4 divisors (see below), whose sum is σ = 2417889600. Its totient is φ = 2417470044.

The previous prime is 2417679793. The next prime is 2417679827. The reversal of 2417679821 is 1289767142.

2417679821 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2417679821 - 2²² = 2413485517 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 (2417679827) 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, 86531 + ... + 111008.

It is an arithmetic number, because the mean of its divisors is an integer number (604472400).

Almost surely, 2^2417679821 is an apocalyptic number.

It is an amenable number.

2417679821 is a deficient number, since it is larger than the sum of its proper divisors (209779).

2417679821 is a wasteful number, since it uses less digits than its factorization.

2417679821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209778.

The product of its digits is 338688, while the sum is 47.

The square root of 2417679821 is about 49169.9076773589. The cubic root of 2417679821 is about 1342.1454864879.

The spelling of 2417679821 in words is "two billion, four hundred seventeen million, six hundred seventy-nine thousand, eight hundred twenty-one".