2392891 has 2 divisors, whose sum is σ = 2392892. Its totient is φ = 2392890.

The previous prime is 2392861. The next prime is 2392919. The reversal of 2392891 is 1982932.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2392891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2392811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196445 + 1196446.

It is an arithmetic number, because the mean of its divisors is an integer number (1196446).

2^2392891 is an apocalyptic number.

2392891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2392891 is an equidigital number, since it uses as much as digits as its factorization.

2392891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 2392891 is about 1546.8972170122. The cubic root of 2392891 is about 133.7542648653.

The spelling of 2392891 in words is "two million, three hundred ninety-two thousand, eight hundred ninety-one".