993941538 has 8 divisors (see below), whose sum is σ = 1987883088. Its totient is φ = 331313844.

The previous prime is 993941521. The next prime is 993941539. The reversal of 993941538 is 835149399.

It is a happy number.

993941538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

993941538 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (993941539) 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, 82828456 + ... + 82828467.

It is an arithmetic number, because the mean of its divisors is an integer number (248485386).

Almost surely, 2^993941538 is an apocalyptic number.

993941538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993941538 is a wasteful number, since it uses less digits than its factorization.

993941538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165656928.

The product of its digits is 1049760, while the sum is 51.

The square root of 993941538 is about 31526.8383762153. The cubic root of 993941538 is about 997.9764205550.

The spelling of 993941538 in words is "nine hundred ninety-three million, nine hundred forty-one thousand, five hundred thirty-eight".