978141958 has 4 divisors (see below), whose sum is σ = 1467212940. Its totient is φ = 489070978.

The previous prime is 978141929. The next prime is 978141959. The reversal of 978141958 is 859141879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 859141879 = 1297 ⋅662407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978141959) 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 as a sum of consecutive naturals, namely, 244535488 + ... + 244535491.

It is an arithmetic number, because the mean of its divisors is an integer number (366803235).

Almost surely, 2^978141958 is an apocalyptic number.

978141958 is a deficient number, since it is larger than the sum of its proper divisors (489070982).

978141958 is a wasteful number, since it uses less digits than its factorization.

978141958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489070981.

The product of its digits is 725760, while the sum is 52.

The square root of 978141958 is about 31275.2611180147. The cubic root of 978141958 is about 992.6602458108.

The spelling of 978141958 in words is "nine hundred seventy-eight million, one hundred forty-one thousand, nine hundred fifty-eight".