7933993 has 4 divisors (see below), whose sum is σ = 7986688. Its totient is φ = 7881300.

The previous prime is 7933957. The next prime is 7934009. The reversal of 7933993 is 3993397.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7933993 - 2⁹ = 7933481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7933903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26121 + ... + 26422.

It is an arithmetic number, because the mean of its divisors is an integer number (1996672).

Almost surely, 2^7933993 is an apocalyptic number.

It is an amenable number.

7933993 is a deficient number, since it is larger than the sum of its proper divisors (52695).

7933993 is a wasteful number, since it uses less digits than its factorization.

7933993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52694.

The product of its digits is 137781, while the sum is 43.

The square root of 7933993 is about 2816.7344567779. The cubic root of 7933993 is about 199.4484218729.

The spelling of 7933993 in words is "seven million, nine hundred thirty-three thousand, nine hundred ninety-three".