978654484 has 6 divisors (see below), whose sum is σ = 1712645354. Its totient is φ = 489327240.

The previous prime is 978654409. The next prime is 978654491. The reversal of 978654484 is 484456879.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 975312900 + 3341584 = 31230^2 + 1828^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122331807 + ... + 122331814.

Almost surely, 2^978654484 is an apocalyptic number.

It is an amenable number.

978654484 is a deficient number, since it is larger than the sum of its proper divisors (733990870).

978654484 is a wasteful number, since it uses less digits than its factorization.

978654484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244663625 (or 244663623 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The square root of 978654484 is about 31283.4538374522. The cubic root of 978654484 is about 992.8335932976.

The spelling of 978654484 in words is "nine hundred seventy-eight million, six hundred fifty-four thousand, four hundred eighty-four".