3748567993 has 4 divisors (see below), whose sum is σ = 3762503460. Its totient is φ = 3734632528.

The previous prime is 3748567981. The next prime is 3748568011. The reversal of 3748567993 is 3997658473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3997658473 = 389 ⋅10276757.

It can be written as a sum of positive squares in 2 ways, for example, as 1693487104 + 2055080889 = 41152^2 + 45333^2 .

It is a cyclic number.

It is not a de Polignac number, because 3748567993 - 2⁹ = 3748567481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3748567973) 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, 6967330 + ... + 6967867.

It is an arithmetic number, because the mean of its divisors is an integer number (940625865).

Almost surely, 2^3748567993 is an apocalyptic number.

It is an amenable number.

3748567993 is a deficient number, since it is larger than the sum of its proper divisors (13935467).

3748567993 is a wasteful number, since it uses less digits than its factorization.

3748567993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13935466.

The product of its digits is 34292160, while the sum is 61.

The square root of 3748567993 is about 61225.5501649434. The cubic root of 3748567993 is about 1553.4184687456.

The spelling of 3748567993 in words is "three billion, seven hundred forty-eight million, five hundred sixty-seven thousand, nine hundred ninety-three".