8481993 has 16 divisors (see below), whose sum is σ = 12337920. Its totient is φ = 5151744.

The previous prime is 8481983. The next prime is 8482021. The reversal of 8481993 is 3991848.

It is not a de Polignac number, because 8481993 - 2⁹ = 8481481 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8481973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705 + ... + 4457.

It is an arithmetic number, because the mean of its divisors is an integer number (771120).

Almost surely, 2^8481993 is an apocalyptic number.

It is an amenable number.

8481993 is a deficient number, since it is larger than the sum of its proper divisors (3855927).

8481993 is a wasteful number, since it uses less digits than its factorization.

8481993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848.

The product of its digits is 62208, while the sum is 42.

The square root of 8481993 is about 2912.3861351133. The cubic root of 8481993 is about 203.9385387704.

The spelling of 8481993 in words is "eight million, four hundred eighty-one thousand, nine hundred ninety-three".