978862455 has 16 divisors (see below), whose sum is σ = 1740200160. Its totient is φ = 522059904.

The previous prime is 978862453. The next prime is 978862471. The reversal of 978862455 is 554268879.

978862455 is a `hidden beast` number, since 9 + 7 + 8 + 8 + 624 + 5 + 5 = 666.

978862455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 978862455 - 2¹ = 978862453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978862453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3625282 + ... + 3625551.

It is an arithmetic number, because the mean of its divisors is an integer number (108762510).

Almost surely, 2^978862455 is an apocalyptic number.

978862455 is a deficient number, since it is larger than the sum of its proper divisors (761337705).

978862455 is a wasteful number, since it uses less digits than its factorization.

978862455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7250847 (or 7250841 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 978862455 is about 31286.7776384849. Note that the first 3 decimals coincide. The cubic root of 978862455 is about 992.9039163701.

The spelling of 978862455 in words is "nine hundred seventy-eight million, eight hundred sixty-two thousand, four hundred fifty-five".