2437891 has 2 divisors, whose sum is σ = 2437892. Its totient is φ = 2437890.

The previous prime is 2437873. The next prime is 2437951. The reversal of 2437891 is 1987342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2437891 - 2⁵ = 2437859 is a prime.

It is not a weakly prime, because it can be changed into another prime (2437691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1218945 + 1218946.

It is an arithmetic number, because the mean of its divisors is an integer number (1218946).

2^2437891 is an apocalyptic number.

2437891 is the 988-th centered pentagonal number.

2437891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2437891 is an equidigital number, since it uses as much as digits as its factorization.

2437891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 2437891 is about 1561.3747147946. The cubic root of 2437891 is about 134.5875109384.

The spelling of 2437891 in words is "two million, four hundred thirty-seven thousand, eight hundred ninety-one".