1089407769 has 8 divisors (see below), whose sum is σ = 1528993440. Its totient is φ = 688046976.

The previous prime is 1089407749. The next prime is 1089407777. The reversal of 1089407769 is 9677049801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1089407769 - 2¹¹ = 1089405721 is a prime.

It is a super-2 number, since 2×1089407769² = 2373618574315114722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1089407749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9556152 + ... + 9556265.

It is an arithmetic number, because the mean of its divisors is an integer number (191124180).

Almost surely, 2^1089407769 is an apocalyptic number.

1089407769 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1089407769 is a deficient number, since it is larger than the sum of its proper divisors (439585671).

1089407769 is a wasteful number, since it uses less digits than its factorization.

1089407769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19112439.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 1089407769 is about 33006.1777399323. The cubic root of 1089407769 is about 1028.9560444032.

The spelling of 1089407769 in words is "one billion, eighty-nine million, four hundred seven thousand, seven hundred sixty-nine".