1089973879 has 2 divisors, whose sum is σ = 1089973880. Its totient is φ = 1089973878.

The previous prime is 1089973813. The next prime is 1089973909. The reversal of 1089973879 is 9783799801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089973879 - 2¹³ = 1089965687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089970879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544986939 + 544986940.

It is an arithmetic number, because the mean of its divisors is an integer number (544986940).

Almost surely, 2^1089973879 is an apocalyptic number.

1089973879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089973879 is an equidigital number, since it uses as much as digits as its factorization.

1089973879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The square root of 1089973879 is about 33014.7524449298. The cubic root of 1089973879 is about 1029.1342456403.

The spelling of 1089973879 in words is "one billion, eighty-nine million, nine hundred seventy-three thousand, eight hundred seventy-nine".