1090678867 has 2 divisors, whose sum is σ = 1090678868. Its totient is φ = 1090678866.

The previous prime is 1090678829. The next prime is 1090678871. The reversal of 1090678867 is 7688760901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1090678867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1090678817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545339433 + 545339434.

It is an arithmetic number, because the mean of its divisors is an integer number (545339434).

Almost surely, 2^1090678867 is an apocalyptic number.

1090678867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090678867 is an equidigital number, since it uses as much as digits as its factorization.

1090678867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 1090678867 is about 33025.4275823948. The cubic root of 1090678867 is about 1029.3560769280.

The spelling of 1090678867 in words is "one billion, ninety million, six hundred seventy-eight thousand, eight hundred sixty-seven".