2488891 has 2 divisors, whose sum is σ = 2488892. Its totient is φ = 2488890.

The previous prime is 2488877. The next prime is 2488901. The reversal of 2488891 is 1988842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2488891 - 2⁹ = 2488379 is a prime.

It is not a weakly prime, because it can be changed into another prime (2488841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244445 + 1244446.

It is an arithmetic number, because the mean of its divisors is an integer number (1244446).

2^2488891 is an apocalyptic number.

2488891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2488891 is an equidigital number, since it uses as much as digits as its factorization.

2488891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 2488891 is about 1577.6219445735. The cubic root of 2488891 is about 135.5195525585.

The spelling of 2488891 in words is "two million, four hundred eighty-eight thousand, eight hundred ninety-one".