1089728703 has 18 divisors (see below), whose sum is σ = 1799349864. Its totient is φ = 622552392.

The previous prime is 1089728687. The next prime is 1089728711. The reversal of 1089728703 is 3078279801.

It is not a de Polignac number, because 1089728703 - 2⁴ = 1089728687 is a prime.

It is a super-2 number, since 2×1089728703² = 2375017292284124418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089728723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 259938 + ... + 264096.

Almost surely, 2^1089728703 is an apocalyptic number.

1089728703 is a deficient number, since it is larger than the sum of its proper divisors (709621161).

1089728703 is an frugal number, since it uses more digits than its factorization.

1089728703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331 (or 4169 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1089728703 is about 33011.0391081529. The cubic root of 1089728703 is about 1029.0570762256.

The spelling of 1089728703 in words is "one billion, eighty-nine million, seven hundred twenty-eight thousand, seven hundred three".