982157838 has 8 divisors (see below), whose sum is σ = 1964315688. Its totient is φ = 327385944.

The previous prime is 982157831. The next prime is 982157843. The reversal of 982157838 is 838751289.

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

982157838 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982157831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81846481 + ... + 81846492.

It is an arithmetic number, because the mean of its divisors is an integer number (245539461).

Almost surely, 2^982157838 is an apocalyptic number.

982157838 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.

982157838 is a wasteful number, since it uses less digits than its factorization.

982157838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163692978.

The product of its digits is 967680, while the sum is 51.

The square root of 982157838 is about 31339.3975372852. The cubic root of 982157838 is about 994.0168864123.

The spelling of 982157838 in words is "nine hundred eighty-two million, one hundred fifty-seven thousand, eight hundred thirty-eight".