7983861 has 8 divisors (see below), whose sum is σ = 10663584. Its totient is φ = 5313360.

The previous prime is 7983851. The next prime is 7983869. The reversal of 7983861 is 1683897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7983861 - 2⁶ = 7983797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7983869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 3996.

It is an arithmetic number, because the mean of its divisors is an integer number (1332948).

Almost surely, 2^7983861 is an apocalyptic number.

It is an amenable number.

7983861 is a deficient number, since it is larger than the sum of its proper divisors (2679723).

7983861 is a wasteful number, since it uses less digits than its factorization.

7983861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611.

The product of its digits is 72576, while the sum is 42.

The square root of 7983861 is about 2825.5726853153. The cubic root of 7983861 is about 199.8654177918.

The spelling of 7983861 in words is "seven million, nine hundred eighty-three thousand, eight hundred sixty-one".