1089888923 has 2 divisors, whose sum is σ = 1089888924. Its totient is φ = 1089888922.

The previous prime is 1089888913. The next prime is 1089888931. The reversal of 1089888923 is 3298889801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089888923 - 2¹⁶ = 1089823387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089888913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544944461 + 544944462.

It is an arithmetic number, because the mean of its divisors is an integer number (544944462).

Almost surely, 2^1089888923 is an apocalyptic number.

1089888923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089888923 is an equidigital number, since it uses as much as digits as its factorization.

1089888923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The square root of 1089888923 is about 33013.4657829196. The cubic root of 1089888923 is about 1029.1075069565.

The spelling of 1089888923 in words is "one billion, eighty-nine million, eight hundred eighty-eight thousand, nine hundred twenty-three".