978303879 has 128 divisors (see below), whose sum is σ = 1837946880. Its totient is φ = 501645312.

The previous prime is 978303871. The next prime is 978303881.

978303879 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 978303879 - 2³ = 978303871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978303871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10085559 + ... + 10085655.

It is an arithmetic number, because the mean of its divisors is an integer number (14358960).

Almost surely, 2^978303879 is an apocalyptic number.

978303879 is a deficient number, since it is larger than the sum of its proper divisors (859643001).

978303879 is a wasteful number, since it uses less digits than its factorization.

978303879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 978303879 is about 31277.8496543480. The cubic root of 978303879 is about 992.7150175714.

The spelling of 978303879 in words is "nine hundred seventy-eight million, three hundred three thousand, eight hundred seventy-nine".