978873427 has 8 divisors (see below), whose sum is σ = 1119571200. Its totient is φ = 838390344.

The previous prime is 978873421. The next prime is 978873439. The reversal of 978873427 is 724378879.

978873427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 978873427 - 2²³ = 970484819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978873421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43777 + ... + 62242.

It is an arithmetic number, because the mean of its divisors is an integer number (139946400).

Almost surely, 2^978873427 is an apocalyptic number.

978873427 is a deficient number, since it is larger than the sum of its proper divisors (140697773).

978873427 is a wasteful number, since it uses less digits than its factorization.

978873427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107345.

The product of its digits is 4741632, while the sum is 55.

The square root of 978873427 is about 31286.9529836320. The cubic root of 978873427 is about 992.9076261529.

It can be divided in two parts, 978873 and 427, that added together give a triangular number (979300 = T₁₃₉₉).

The spelling of 978873427 in words is "nine hundred seventy-eight million, eight hundred seventy-three thousand, four hundred twenty-seven".