1089547389 has 40 divisors (see below), whose sum is σ = 1883168320. Its totient is φ = 622598508.

The previous prime is 1089547387. The next prime is 1089547423. The reversal of 1089547389 is 9837459801.

The cubic root of 1089547389 is 1029.

It is a perfect power (a cube), and thus also a powerful number.

1089547389 is a `hidden beast` number, since 1 + 0 + 8 + 95 + 473 + 89 = 666.

It is not a de Polignac number, because 1089547389 - 2¹ = 1089547387 is a prime.

It is a super-2 number, since 2×1089547389² = 2374227025753434642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089547387) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 155649624 + ... + 155649630.

It is an arithmetic number, because the mean of its divisors is an integer number (47079208).

Almost surely, 2^1089547389 is an apocalyptic number.

It is an amenable number.

1089547389 is a deficient number, since it is larger than the sum of its proper divisors (793620931).

1089547389 is an frugal number, since it uses more digits than its factorization.

1089547389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 1089547389 is about 33008.2927307669.

It can be divided in two parts, 1089547 and 389, that added together give a square (1089936 = 1044²).

The spelling of 1089547389 in words is "one billion, eighty-nine million, five hundred forty-seven thousand, three hundred eighty-nine".