1089598433 has 16 divisors (see below), whose sum is σ = 1384096896. Its totient is φ = 833015040.

The previous prime is 1089598429. The next prime is 1089598463. The reversal of 1089598433 is 3348959801.

It is not a de Polignac number, because 1089598433 - 2² = 1089598429 is a prime.

It is a super-3 number, since 3×1089598433³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1089598463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129416 + ... + 137577.

It is an arithmetic number, because the mean of its divisors is an integer number (86506056).

Almost surely, 2^1089598433 is an apocalyptic number.

It is an amenable number.

1089598433 is a deficient number, since it is larger than the sum of its proper divisors (294498463).

1089598433 is a wasteful number, since it uses less digits than its factorization.

1089598433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267064.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 1089598433 is about 33009.0659213495. The cubic root of 1089598433 is about 1029.0160688913.

The spelling of 1089598433 in words is "one billion, eighty-nine million, five hundred ninety-eight thousand, four hundred thirty-three".