2421317 has 8 divisors (see below), whose sum is σ = 2568192. Its totient is φ = 2278800.

The previous prime is 2421311. The next prime is 2421319. The reversal of 2421317 is 7131242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421317 - 2⁶ = 2421253 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 (2421311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92 + ... + 2202.

It is an arithmetic number, because the mean of its divisors is an integer number (321024).

2^2421317 is an apocalyptic number.

It is an amenable number.

2421317 is a deficient number, since it is larger than the sum of its proper divisors (146875).

2421317 is a wasteful number, since it uses less digits than its factorization.

2421317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179.

The product of its digits is 336, while the sum is 20.

The square root of 2421317 is about 1556.0581608667. The cubic root of 2421317 is about 134.2818194456.

Adding to 2421317 its reverse (7131242), we get a palindrome (9552559).

The spelling of 2421317 in words is "two million, four hundred twenty-one thousand, three hundred seventeen".