979643848 has 8 divisors (see below), whose sum is σ = 1836832230. Its totient is φ = 489821920.

The previous prime is 979643839. The next prime is 979643849. The reversal of 979643848 is 848346979.

It can be written as a sum of positive squares in only one way, i.e., 660592804 + 319051044 = 25702^2 + 17862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 979643792 and 979643801.

It is not an unprimeable number, because it can be changed into a prime (979643849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61227733 + ... + 61227748.

Almost surely, 2^979643848 is an apocalyptic number.

It is an amenable number.

979643848 is a deficient number, since it is larger than the sum of its proper divisors (857188382).

979643848 is a wasteful number, since it uses less digits than its factorization.

979643848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122455487 (or 122455483 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 58.

The square root of 979643848 is about 31299.2627389209. The cubic root of 979643848 is about 993.1680467094.

The spelling of 979643848 in words is "nine hundred seventy-nine million, six hundred forty-three thousand, eight hundred forty-eight".