2663431 has 2 divisors, whose sum is σ = 2663432. Its totient is φ = 2663430.

The previous prime is 2663429. The next prime is 2663459. The reversal of 2663431 is 1343662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2663431 - 2¹ = 2663429 is a prime.

It is a super-2 number, since 2×2663431² = 14187729383522, which contains 22 as substring.

Together with 2663429, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁷ + 6⁸ + 3⁷ + 4⁴ + 3¹¹ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 2663396 and 2663405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331715 + 1331716.

It is an arithmetic number, because the mean of its divisors is an integer number (1331716).

2^2663431 is an apocalyptic number.

2663431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663431 is an equidigital number, since it uses as much as digits as its factorization.

2663431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 2663431 is about 1632.0021446064. The cubic root of 2663431 is about 138.6161450208.

The spelling of 2663431 in words is "two million, six hundred sixty-three thousand, four hundred thirty-one".