1089931963 has 2 divisors, whose sum is σ = 1089931964. Its totient is φ = 1089931962.

The previous prime is 1089931951. The next prime is 1089931967. The reversal of 1089931963 is 3691399801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089931963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089931967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544965981 + 544965982.

It is an arithmetic number, because the mean of its divisors is an integer number (544965982).

Almost surely, 2^1089931963 is an apocalyptic number.

1089931963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089931963 is an equidigital number, since it uses as much as digits as its factorization.

1089931963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 1089931963 is about 33014.1176317042. The cubic root of 1089931963 is about 1029.1210533535.

The spelling of 1089931963 in words is "one billion, eighty-nine million, nine hundred thirty-one thousand, nine hundred sixty-three".