3748741921 has 4 divisors (see below), whose sum is σ = 3749000112. Its totient is φ = 3748483732.

The previous prime is 3748741907. The next prime is 3748741937. The reversal of 3748741921 is 1291478473.

3748741921 is digitally balanced in base 2, 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 3748741921 - 2⁷ = 3748741793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3748741951) 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, 105931 + ... + 136816.

It is an arithmetic number, because the mean of its divisors is an integer number (937250028).

Almost surely, 2^3748741921 is an apocalyptic number.

It is an amenable number.

3748741921 is a deficient number, since it is larger than the sum of its proper divisors (258191).

3748741921 is a wasteful number, since it uses less digits than its factorization.

3748741921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258190.

The product of its digits is 338688, while the sum is 46.

The square root of 3748741921 is about 61226.9705358676. The cubic root of 3748741921 is about 1553.4424938124.

The spelling of 3748741921 in words is "three billion, seven hundred forty-eight million, seven hundred forty-one thousand, nine hundred twenty-one".