2353993 has 2 divisors, whose sum is σ = 2353994. Its totient is φ = 2353992.

The previous prime is 2353991. The next prime is 2354039. The reversal of 2353993 is 3993532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 82944 = 1507^2 + 288^2 .

It is a cyclic number.

It is not a de Polignac number, because 2353993 - 2¹ = 2353991 is a prime.

Together with 2353991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2353991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1176996 + 1176997.

It is an arithmetic number, because the mean of its divisors is an integer number (1176997).

2^2353993 is an apocalyptic number.

It is an amenable number.

2353993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2353993 is an equidigital number, since it uses as much as digits as its factorization.

2353993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21870, while the sum is 34.

The square root of 2353993 is about 1534.2727919115. The cubic root of 2353993 is about 133.0255476956.

It can be divided in two parts, 23539 and 93, that added together give a palindrome (23632).

The spelling of 2353993 in words is "two million, three hundred fifty-three thousand, nine hundred ninety-three".