3746990993 has 4 divisors (see below), whose sum is σ = 3755526720. Its totient is φ = 3738455268.

The previous prime is 3746990983. The next prime is 3746991041. The reversal of 3746990993 is 3990996473.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3990996473 = 89 ⋅44842657.

It is a cyclic number.

It is not a de Polignac number, because 3746990993 - 2¹⁸ = 3746728849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3746990983) 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, 4267205 + ... + 4268082.

It is an arithmetic number, because the mean of its divisors is an integer number (938881680).

Almost surely, 2^3746990993 is an apocalyptic number.

It is an amenable number.

3746990993 is a deficient number, since it is larger than the sum of its proper divisors (8535727).

3746990993 is an equidigital number, since it uses as much as digits as its factorization.

3746990993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535726.

The product of its (nonzero) digits is 9920232, while the sum is 59.

The square root of 3746990993 is about 61212.6701998859. The cubic root of 3746990993 is about 1553.2006002564.

The spelling of 3746990993 in words is "three billion, seven hundred forty-six million, nine hundred ninety thousand, nine hundred ninety-three".