8283940993 has 4 divisors (see below), whose sum is σ = 8551164928. Its totient is φ = 8016717060.

The previous prime is 8283940937. The next prime is 8283940997. The reversal of 8283940993 is 3990493828.

It is a happy number.

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 8283940993 - 2²⁹ = 7747070081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8283940997) 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, 133611921 + ... + 133611982.

It is an arithmetic number, because the mean of its divisors is an integer number (2137791232).

Almost surely, 2^8283940993 is an apocalyptic number.

It is an amenable number.

8283940993 is a deficient number, since it is larger than the sum of its proper divisors (267223935).

8283940993 is a wasteful number, since it uses less digits than its factorization.

8283940993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267223934.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 8283940993 is about 91016.1578677105. The cubic root of 8283940993 is about 2023.3872027982.

The spelling of 8283940993 in words is "eight billion, two hundred eighty-three million, nine hundred forty thousand, nine hundred ninety-three".