7993857 has 8 divisors (see below), whose sum is σ = 11121984. Its totient is φ = 5097488.

The previous prime is 7993849. The next prime is 7993871. The reversal of 7993857 is 7583997.

7993857 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 7993857 - 2³ = 7993849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7993897) 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, 57858 + ... + 57995.

It is an arithmetic number, because the mean of its divisors is an integer number (1390248).

Almost surely, 2^7993857 is an apocalyptic number.

It is an amenable number.

7993857 is a deficient number, since it is larger than the sum of its proper divisors (3128127).

7993857 is a wasteful number, since it uses less digits than its factorization.

7993857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115879.

The product of its digits is 476280, while the sum is 48.

The square root of 7993857 is about 2827.3409769605. The cubic root of 7993857 is about 199.9487952248.

It can be divided in two parts, 799 and 3857, that added together give a triangular number (4656 = T₉₆).

The spelling of 7993857 in words is "seven million, nine hundred ninety-three thousand, eight hundred fifty-seven".