2315663 has 16 divisors (see below), whose sum is σ = 2910720. Its totient is φ = 1796256.

The previous prime is 2315659. The next prime is 2315683. The reversal of 2315663 is 3665132.

It is not a de Polignac number, because 2315663 - 2² = 2315659 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2681 + ... + 3437.

It is an arithmetic number, because the mean of its divisors is an integer number (181920).

2^2315663 is an apocalyptic number.

2315663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2315663 is a deficient number, since it is larger than the sum of its proper divisors (595057).

2315663 is a wasteful number, since it uses less digits than its factorization.

2315663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 3240, while the sum is 26.

The square root of 2315663 is about 1521.7302651916. The cubic root of 2315663 is about 132.2995759450.

It can be divided in two parts, 231 and 5663, that multiplied together give a triangular number (1308153 = T₁₆₁₇).

The spelling of 2315663 in words is "two million, three hundred fifteen thousand, six hundred sixty-three".