7841993 has 8 divisors (see below), whose sum is σ = 7963200. Its totient is φ = 7722000.

The previous prime is 7841989. The next prime is 7842013. The reversal of 7841993 is 3991487.

It is a happy number.

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 7841993 - 2² = 7841989 is a prime.

It is a super-2 number, since 2×7841993² = 122993708424098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7841993.

It is not an unprimeable number, because it can be changed into a prime (7841983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31118 + ... + 31368.

It is an arithmetic number, because the mean of its divisors is an integer number (995400).

Almost surely, 2^7841993 is an apocalyptic number.

It is an amenable number.

7841993 is a deficient number, since it is larger than the sum of its proper divisors (121207).

7841993 is a wasteful number, since it uses less digits than its factorization.

7841993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its digits is 54432, while the sum is 41.

The square root of 7841993 is about 2800.3558702422. The cubic root of 7841993 is about 198.6745097850.

The spelling of 7841993 in words is "seven million, eight hundred forty-one thousand, nine hundred ninety-three".