7139993 has 8 divisors (see below), whose sum is σ = 8241600. Its totient is φ = 6058800.

The previous prime is 7139971. The next prime is 7139999. The reversal of 7139993 is 3999317.

7139993 is digitally balanced in base 3, 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 a de Polignac number, because none of the positive numbers 2^k-7139993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7139993.

It is not an unprimeable number, because it can be changed into a prime (7139999) 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, 4343 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (1030200).

Almost surely, 2^7139993 is an apocalyptic number.

It is an amenable number.

7139993 is a deficient number, since it is larger than the sum of its proper divisors (1101607).

7139993 is a wasteful number, since it uses less digits than its factorization.

7139993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207.

The product of its digits is 45927, while the sum is 41.

The square root of 7139993 is about 2672.0765333351. The cubic root of 7139993 is about 192.5599341123.

The spelling of 7139993 in words is "seven million, one hundred thirty-nine thousand, nine hundred ninety-three".