3746721793 has 4 divisors (see below), whose sum is σ = 3748296448. Its totient is φ = 3745147140.

The previous prime is 3746721779. The next prime is 3746721799. The reversal of 3746721793 is 3971276473.

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 3746721793 - 2²⁵ = 3713167361 is a prime.

It is a super-2 number, since 2×3746721793² = 28075848388282269698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3746721799) 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, 783753 + ... + 788518.

It is an arithmetic number, because the mean of its divisors is an integer number (937074112).

Almost surely, 2^3746721793 is an apocalyptic number.

It is an amenable number.

3746721793 is a deficient number, since it is larger than the sum of its proper divisors (1574655).

3746721793 is a wasteful number, since it uses less digits than its factorization.

3746721793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574654.

The product of its digits is 1333584, while the sum is 49.

The square root of 3746721793 is about 61210.4712692199. The cubic root of 3746721793 is about 1553.1634031547.

The spelling of 3746721793 in words is "three billion, seven hundred forty-six million, seven hundred twenty-one thousand, seven hundred ninety-three".