1086688891 has 2 divisors, whose sum is σ = 1086688892. Its totient is φ = 1086688890.

The previous prime is 1086688861. The next prime is 1086688901. The reversal of 1086688891 is 1988866801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1086688891 - 2⁵ = 1086688859 is a prime.

It is a pancake number, because a pancake can be divided into 1086688891 parts by 46619 straight cuts.

It is not a weakly prime, because it can be changed into another prime (1086688861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543344445 + 543344446.

It is an arithmetic number, because the mean of its divisors is an integer number (543344446).

Almost surely, 2^1086688891 is an apocalyptic number.

1086688891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086688891 is an equidigital number, since it uses as much as digits as its factorization.

1086688891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 55.

The square root of 1086688891 is about 32964.9645987979. The cubic root of 1086688891 is about 1028.0993292137.

The spelling of 1086688891 in words is "one billion, eighty-six million, six hundred eighty-eight thousand, eight hundred ninety-one".