1106867891 has 2 divisors, whose sum is σ = 1106867892. Its totient is φ = 1106867890.

The previous prime is 1106867851. The next prime is 1106867897. The reversal of 1106867891 is 1987686011.

It is a strong prime.

It is an emirp because it is prime and its reverse (1987686011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1106867891 - 2²² = 1102673587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1106867897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553433945 + 553433946.

It is an arithmetic number, because the mean of its divisors is an integer number (553433946).

Almost surely, 2^1106867891 is an apocalyptic number.

1106867891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106867891 is an equidigital number, since it uses as much as digits as its factorization.

1106867891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 1106867891 is about 33269.6241487637. The cubic root of 1106867891 is about 1034.4240195716.

The spelling of 1106867891 in words is "one billion, one hundred six million, eight hundred sixty-seven thousand, eight hundred ninety-one".