978770084 has 6 divisors (see below), whose sum is σ = 1712847654. Its totient is φ = 489385040.

The previous prime is 978770063. The next prime is 978770119. The reversal of 978770084 is 480077879.

978770084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 563017984 + 415752100 = 23728^2 + 20390^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122346257 + ... + 122346264.

It is an arithmetic number, because the mean of its divisors is an integer number (285474609).

Almost surely, 2^978770084 is an apocalyptic number.

It is an amenable number.

978770084 is a deficient number, since it is larger than the sum of its proper divisors (734077570).

978770084 is a wasteful number, since it uses less digits than its factorization.

978770084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244692525 (or 244692523 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 978770084 is about 31285.3014049729. The cubic root of 978770084 is about 992.8726833771.

The spelling of 978770084 in words is "nine hundred seventy-eight million, seven hundred seventy thousand, eighty-four".