1067991969 has 32 divisors (see below), whose sum is σ = 1649787264. Its totient is φ = 607354880.

The previous prime is 1067991949. The next prime is 1067991973. The reversal of 1067991969 is 9691997601.

1067991969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1067991969 - 2⁵ = 1067991937 is a prime.

It is a super-2 number, since 2×1067991969² = 2281213691696993922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1067991929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195337 + ... + 200729.

It is an arithmetic number, because the mean of its divisors is an integer number (51555852).

Almost surely, 2^1067991969 is an apocalyptic number.

It is an amenable number.

1067991969 is a deficient number, since it is larger than the sum of its proper divisors (581795295).

1067991969 is a wasteful number, since it uses less digits than its factorization.

1067991969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777.

The product of its (nonzero) digits is 1653372, while the sum is 57.

The square root of 1067991969 is about 32680.1464042008. The cubic root of 1067991969 is about 1022.1688979225.

The spelling of 1067991969 in words is "one billion, sixty-seven million, nine hundred ninety-one thousand, nine hundred sixty-nine".