2126687 has 2 divisors, whose sum is σ = 2126688. Its totient is φ = 2126686.

The previous prime is 2126681. The next prime is 2126749. The reversal of 2126687 is 7866212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2126687 - 2⁶ = 2126623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063343 + 1063344.

It is an arithmetic number, because the mean of its divisors is an integer number (1063344).

2^2126687 is an apocalyptic number.

2126687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126687 is an equidigital number, since it uses as much as digits as its factorization.

2126687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 2126687 is about 1458.3164951409. The cubic root of 2126687 is about 128.5980921185.

The spelling of 2126687 in words is "two million, one hundred twenty-six thousand, six hundred eighty-seven".