993374481 has 32 divisors (see below), whose sum is σ = 1541030400. Its totient is φ = 562510080.

The previous prime is 993374467. The next prime is 993374537. The reversal of 993374481 is 184473399.

It is a happy number.

993374481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 993374481 - 2²² = 989180177 is a prime.

It is a super-2 number, since 2×993374481² = 1973585719004038722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 993374481.

It is not an unprimeable number, because it can be changed into a prime (993374401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71610 + ... + 84348.

It is an arithmetic number, because the mean of its divisors is an integer number (48157200).

Almost surely, 2^993374481 is an apocalyptic number.

It is an amenable number.

993374481 is a deficient number, since it is larger than the sum of its proper divisors (547655919).

993374481 is a wasteful number, since it uses less digits than its factorization.

993374481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12909.

The product of its digits is 653184, while the sum is 48.

The square root of 993374481 is about 31517.8438507459. The cubic root of 993374481 is about 997.7865981334.

The spelling of 993374481 in words is "nine hundred ninety-three million, three hundred seventy-four thousand, four hundred eighty-one".