8748741921 has 4 divisors (see below), whose sum is σ = 11664989232. Its totient is φ = 5832494612.

The previous prime is 8748741913. The next prime is 8748741923. The reversal of 8748741921 is 1291478478.

8748741921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 8748741921 - 2³ = 8748741913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8748741923) 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, 1458123651 + ... + 1458123656.

It is an arithmetic number, because the mean of its divisors is an integer number (2916247308).

Almost surely, 2^8748741921 is an apocalyptic number.

It is an amenable number.

8748741921 is a deficient number, since it is larger than the sum of its proper divisors (2916247311).

8748741921 is a wasteful number, since it uses less digits than its factorization.

8748741921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916247310.

The product of its digits is 903168, while the sum is 51.

The square root of 8748741921 is about 93534.7097124912. The cubic root of 8748741921 is about 2060.5438851232.

The spelling of 8748741921 in words is "eight billion, seven hundred forty-eight million, seven hundred forty-one thousand, nine hundred twenty-one".