7471993 has 8 divisors (see below), whose sum is σ = 8061768. Its totient is φ = 6898944.

The previous prime is 7471991. The next prime is 7471999. The reversal of 7471993 is 3991747.

It can be written as a sum of positive squares in 4 ways, for example, as 1750329 + 5721664 = 1323^2 + 2392^2 .

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 7471993 - 2¹ = 7471991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7471991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3246 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (1007721).

Almost surely, 2^7471993 is an apocalyptic number.

It is an amenable number.

7471993 is a deficient number, since it is larger than the sum of its proper divisors (589775).

7471993 is a wasteful number, since it uses less digits than its factorization.

7471993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363.

The product of its digits is 47628, while the sum is 40.

The square root of 7471993 is about 2733.4946497112. The cubic root of 7471993 is about 195.4994254774.

It can be divided in two parts, 7471 and 993, that added together give a square (8464 = 92²).

The spelling of 7471993 in words is "seven million, four hundred seventy-one thousand, nine hundred ninety-three".