7473993 has 4 divisors (see below), whose sum is σ = 9965328. Its totient is φ = 4982660.

The previous prime is 7473979. The next prime is 7474001. The reversal of 7473993 is 3993747.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3993747 = 3 ⋅1331249.

It is a cyclic number.

It is not a de Polignac number, because 7473993 - 2⁶ = 7473929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7473913) 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, 1245663 + ... + 1245668.

It is an arithmetic number, because the mean of its divisors is an integer number (2491332).

Almost surely, 2^7473993 is an apocalyptic number.

It is an amenable number.

7473993 is a deficient number, since it is larger than the sum of its proper divisors (2491335).

7473993 is a wasteful number, since it uses less digits than its factorization.

7473993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491334.

The product of its digits is 142884, while the sum is 42.

The square root of 7473993 is about 2733.8604573021. The cubic root of 7473993 is about 195.5168667843.

The spelling of 7473993 in words is "seven million, four hundred seventy-three thousand, nine hundred ninety-three".