2421593 has 2 divisors, whose sum is σ = 2421594. Its totient is φ = 2421592.

The previous prime is 2421589. The next prime is 2421641. The reversal of 2421593 is 3951242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 150544 = 1507^2 + 388^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421593 - 2² = 2421589 is a prime.

It is a super-2 number, since 2×2421593² = 11728225315298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2421533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210796 + 1210797.

It is an arithmetic number, because the mean of its divisors is an integer number (1210797).

2^2421593 is an apocalyptic number.

It is an amenable number.

2421593 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421593 is an equidigital number, since it uses as much as digits as its factorization.

2421593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 2421593 is about 1556.1468439707. The cubic root of 2421593 is about 134.2869214037.

The spelling of 2421593 in words is "two million, four hundred twenty-one thousand, five hundred ninety-three".