7427993 has 8 divisors (see below), whose sum is σ = 7869120. Its totient is φ = 6991920.

The previous prime is 7427977. The next prime is 7428007. The reversal of 7427993 is 3997247.

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 7427993 - 2⁴ = 7427977 is a prime.

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 7427993.

It is not an unprimeable number, because it can be changed into a prime (7427933) 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, 2003 + ... + 4343.

It is an arithmetic number, because the mean of its divisors is an integer number (983640).

Almost surely, 2^7427993 is an apocalyptic number.

It is an amenable number.

7427993 is a deficient number, since it is larger than the sum of its proper divisors (441127).

7427993 is a wasteful number, since it uses less digits than its factorization.

7427993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527.

The product of its digits is 95256, while the sum is 41.

The square root of 7427993 is about 2725.4344607787. The cubic root of 7427993 is about 195.1149267737.

The spelling of 7427993 in words is "seven million, four hundred twenty-seven thousand, nine hundred ninety-three".