978141879 has 128 divisors (see below), whose sum is σ = 1801820160. Its totient is φ = 516326400.

The previous prime is 978141859. The next prime is 978141881.

978141879 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 978141879 - 2⁵ = 978141847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978141859) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5857054 + ... + 5857220.

It is an arithmetic number, because the mean of its divisors is an integer number (14076720).

Almost surely, 2^978141879 is an apocalyptic number.

978141879 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

978141879 is a deficient number, since it is larger than the sum of its proper divisors (823678281).

978141879 is a wasteful number, since it uses less digits than its factorization.

978141879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 272 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 978141879 is about 31275.2598550356. The cubic root of 978141879 is about 992.6602190866.

The spelling of 978141879 in words is "nine hundred seventy-eight million, one hundred forty-one thousand, eight hundred seventy-nine".