2631427 has 2 divisors, whose sum is σ = 2631428. Its totient is φ = 2631426.

The previous prime is 2631401. The next prime is 2631437. The reversal of 2631427 is 7241362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631427 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 3⁷ + 1 + 4² + 2²¹ + 7 .

It is not a weakly prime, because it can be changed into another prime (2631437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315713 + 1315714.

It is an arithmetic number, because the mean of its divisors is an integer number (1315714).

2^2631427 is an apocalyptic number.

2631427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631427 is an equidigital number, since it uses as much as digits as its factorization.

2631427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 2631427 is about 1622.1673773073. The cubic root of 2631427 is about 138.0586986863.

Adding to 2631427 its reverse (7241362), we get a palindrome (9872789).

The spelling of 2631427 in words is "two million, six hundred thirty-one thousand, four hundred twenty-seven".