7993645 has 16 divisors (see below), whose sum is σ = 10575360. Its totient is φ = 5752000.

The previous prime is 7993577. The next prime is 7993651. The reversal of 7993645 is 5463997.

It is not a de Polignac number, because 7993645 - 2²¹ = 5896493 is a prime.

It is a super-3 number, since 3×7993645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4836 + ... + 6274.

It is an arithmetic number, because the mean of its divisors is an integer number (660960).

Almost surely, 2^7993645 is an apocalyptic number.

It is an amenable number.

7993645 is a deficient number, since it is larger than the sum of its proper divisors (2581715).

7993645 is a wasteful number, since it uses less digits than its factorization.

7993645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556.

The product of its digits is 204120, while the sum is 43.

The square root of 7993645 is about 2827.3034856555. The cubic root of 7993645 is about 199.9470276375.

It can be divided in two parts, 799 and 3645, that added together give a palindrome (4444).

The spelling of 7993645 in words is "seven million, nine hundred ninety-three thousand, six hundred forty-five".