8744236121 has 4 divisors (see below), whose sum is σ = 8746287744. Its totient is φ = 8742184500.

The previous prime is 8744236079. The next prime is 8744236133. The reversal of 8744236121 is 1216324478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8744236121 is a prime.

It is a super-2 number, since 2×8744236121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8744236141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019405 + ... + 1027946.

It is an arithmetic number, because the mean of its divisors is an integer number (2186571936).

Almost surely, 2^8744236121 is an apocalyptic number.

It is an amenable number.

8744236121 is a deficient number, since it is larger than the sum of its proper divisors (2051623).

8744236121 is a wasteful number, since it uses less digits than its factorization.

8744236121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051622.

The product of its digits is 64512, while the sum is 38.

The square root of 8744236121 is about 93510.6203647479. The cubic root of 8744236121 is about 2060.1900821396.

The spelling of 8744236121 in words is "eight billion, seven hundred forty-four million, two hundred thirty-six thousand, one hundred twenty-one".