9147276489 has 16 divisors (see below), whose sum is σ = 13136663232. Its totient is φ = 5628187968.

The previous prime is 9147276451. The next prime is 9147276491. The reversal of 9147276489 is 9846727419.

It is a happy number.

It is not a de Polignac number, because 9147276489 - 2¹⁶ = 9147210953 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9147276499) 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, 291334 + ... + 321200.

It is an arithmetic number, because the mean of its divisors is an integer number (821041452).

Almost surely, 2^9147276489 is an apocalyptic number.

It is an amenable number.

9147276489 is a deficient number, since it is larger than the sum of its proper divisors (3989386743).

9147276489 is a wasteful number, since it uses less digits than its factorization.

9147276489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37736.

The product of its digits is 6096384, while the sum is 57.

The square root of 9147276489 is about 95641.3952689943. The cubic root of 9147276489 is about 2091.3686912499.

The spelling of 9147276489 in words is "nine billion, one hundred forty-seven million, two hundred seventy-six thousand, four hundred eighty-nine".