2363993 has 4 divisors (see below), whose sum is σ = 2445540. Its totient is φ = 2282448.

The previous prime is 2363983. The next prime is 2364001. The reversal of 2363993 is 3993632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 1885129 = 692^2 + 1373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2363993 - 2¹⁸ = 2101849 is a prime.

It is a d-powerful number, because it can be written as 2³ + 3¹¹ + 6⁴ + 3¹² + 9³ + 9⁵ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2363903) 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, 40730 + ... + 40787.

It is an arithmetic number, because the mean of its divisors is an integer number (611385).

2^2363993 is an apocalyptic number.

It is an amenable number.

2363993 is a deficient number, since it is larger than the sum of its proper divisors (81547).

2363993 is an equidigital number, since it uses as much as digits as its factorization.

2363993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81546.

The product of its digits is 26244, while the sum is 35.

The square root of 2363993 is about 1537.5282111233. The cubic root of 2363993 is about 133.2136502407.

It can be divided in two parts, 23639 and 93, that added together give a palindrome (23732).

The spelling of 2363993 in words is "two million, three hundred sixty-three thousand, nine hundred ninety-three".