8742833121 has 8 divisors (see below), whose sum is σ = 12716848224. Its totient is φ = 5298686720.

The previous prime is 8742833093. The next prime is 8742833131. The reversal of 8742833121 is 1213382478.

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

It is a cyclic number.

It is not a de Polignac number, because 8742833121 - 2⁵ = 8742833089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8742833121.

It is not an unprimeable number, because it can be changed into a prime (8742833131) 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, 132467136 + ... + 132467201.

It is an arithmetic number, because the mean of its divisors is an integer number (1589606028).

Almost surely, 2^8742833121 is an apocalyptic number.

It is an amenable number.

8742833121 is a deficient number, since it is larger than the sum of its proper divisors (3974015103).

8742833121 is a wasteful number, since it uses less digits than its factorization.

8742833121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264934351.

The product of its digits is 64512, while the sum is 39.

The square root of 8742833121 is about 93503.1182421207. The cubic root of 8742833121 is about 2060.0798914094.

The spelling of 8742833121 in words is "eight billion, seven hundred forty-two million, eight hundred thirty-three thousand, one hundred twenty-one".