2291496887 has 2 divisors, whose sum is σ = 2291496888. Its totient is φ = 2291496886.

The previous prime is 2291496853. The next prime is 2291496899. The reversal of 2291496887 is 7886941922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2291496887 - 2⁸ = 2291496631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2291492887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145748443 + 1145748444.

It is an arithmetic number, because the mean of its divisors is an integer number (1145748444).

Almost surely, 2^2291496887 is an apocalyptic number.

2291496887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291496887 is an equidigital number, since it uses as much as digits as its factorization.

2291496887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 56.

The square root of 2291496887 is about 47869.5820641877. The cubic root of 2291496887 is about 1318.3774230100.

The spelling of 2291496887 in words is "two billion, two hundred ninety-one million, four hundred ninety-six thousand, eight hundred eighty-seven".