4126891 has 2 divisors, whose sum is σ = 4126892. Its totient is φ = 4126890.

The previous prime is 4126861. The next prime is 4126897. The reversal of 4126891 is 1986214.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4126891 is a prime.

4126891 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4126897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063445 + 2063446.

It is an arithmetic number, because the mean of its divisors is an integer number (2063446).

Almost surely, 2^4126891 is an apocalyptic number.

4126891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4126891 is an equidigital number, since it uses as much as digits as its factorization.

4126891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 4126891 is about 2031.4750798373. The cubic root of 4126891 is about 160.4012196142.

The spelling of 4126891 in words is "four million, one hundred twenty-six thousand, eight hundred ninety-one".