2421017 has 4 divisors (see below), whose sum is σ = 2472576. Its totient is φ = 2369460.

The previous prime is 2420993. The next prime is 2421031. The reversal of 2421017 is 7101242.

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 2421017 - 2¹⁰ = 2419993 is a prime.

It is a super-2 number, since 2×2421017² = 11722646628578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2420986 and 2421004.

It is not an unprimeable number, because it can be changed into a prime (2421047) 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, 25709 + ... + 25802.

It is an arithmetic number, because the mean of its divisors is an integer number (618144).

2^2421017 is an apocalyptic number.

It is an amenable number.

2421017 is a deficient number, since it is larger than the sum of its proper divisors (51559).

2421017 is an equidigital number, since it uses as much as digits as its factorization.

2421017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51558.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2421017 is about 1555.9617604556. The cubic root of 2421017 is about 134.2762733991.

Adding to 2421017 its reverse (7101242), we get a palindrome (9522259).

The spelling of 2421017 in words is "two million, four hundred twenty-one thousand, seventeen".