7983022643 has 4 divisors (see below), whose sum is σ = 8330110608. Its totient is φ = 7635934680.

The previous prime is 7983022631. The next prime is 7983022661. The reversal of 7983022643 is 3462203897.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-7983022643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7983022594 and 7983022603.

It is not an unprimeable number, because it can be changed into a prime (7983022693) 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, 173543948 + ... + 173543993.

It is an arithmetic number, because the mean of its divisors is an integer number (2082527652).

Almost surely, 2^7983022643 is an apocalyptic number.

7983022643 is a deficient number, since it is larger than the sum of its proper divisors (347087965).

7983022643 is a wasteful number, since it uses less digits than its factorization.

7983022643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347087964.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 7983022643 is about 89347.7623838448. The cubic root of 7983022643 is about 1998.5842182675.

The spelling of 7983022643 in words is "seven billion, nine hundred eighty-three million, twenty-two thousand, six hundred forty-three".