978279055 has 8 divisors (see below), whose sum is σ = 1264237632. Its totient is φ = 722421408.

The previous prime is 978279037. The next prime is 978279061. The reversal of 978279055 is 550972879.

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 978279055 - 2⁵ = 978279023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 978278993 and 978279011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7525159 + ... + 7525288.

It is an arithmetic number, because the mean of its divisors is an integer number (158029704).

Almost surely, 2^978279055 is an apocalyptic number.

978279055 is a deficient number, since it is larger than the sum of its proper divisors (285958577).

978279055 is a wasteful number, since it uses less digits than its factorization.

978279055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050465.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The square root of 978279055 is about 31277.4528214815. The cubic root of 978279055 is about 992.7066209417.

The spelling of 978279055 in words is "nine hundred seventy-eight million, two hundred seventy-nine thousand, fifty-five".