7965983 has 4 divisors (see below), whose sum is σ = 8135520. Its totient is φ = 7796448.

The previous prime is 7965949. The next prime is 7966001. The reversal of 7965983 is 3895697.

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

It is a cyclic number.

It is not a de Polignac number, because 7965983 - 2²² = 3771679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 169489 = 7965983 / (7 + 9 + 6 + 5 + 9 + 8 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7965283) 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, 84698 + ... + 84791.

It is an arithmetic number, because the mean of its divisors is an integer number (2033880).

Almost surely, 2^7965983 is an apocalyptic number.

7965983 is a deficient number, since it is larger than the sum of its proper divisors (169537).

7965983 is a wasteful number, since it uses less digits than its factorization.

7965983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169536.

The product of its digits is 408240, while the sum is 47.

The square root of 7965983 is about 2822.4073058295. The cubic root of 7965983 is about 199.7161222578.

The spelling of 7965983 in words is "seven million, nine hundred sixty-five thousand, nine hundred eighty-three".