978494898 has 16 divisors (see below), whose sum is σ = 1957481856. Its totient is φ = 326082960.

The previous prime is 978494897. The next prime is 978494939. The reversal of 978494898 is 898494879.

978494898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (978494897) 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, 8508 + ... + 45048.

It is an arithmetic number, because the mean of its divisors is an integer number (122342616).

Almost surely, 2^978494898 is an apocalyptic number.

978494898 is an abundant number, since it is smaller than the sum of its proper divisors (978986958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978494898 is a wasteful number, since it uses less digits than its factorization.

978494898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41009.

The product of its digits is 41803776, while the sum is 66.

The square root of 978494898 is about 31280.9030879864. The cubic root of 978494898 is about 992.7796243169.

The spelling of 978494898 in words is "nine hundred seventy-eight million, four hundred ninety-four thousand, eight hundred ninety-eight".