978000500 has 24 divisors (see below), whose sum is σ = 2135954184. Its totient is φ = 391200000.

The previous prime is 978000481. The next prime is 978000523. The reversal of 978000500 is 5000879.

It is a happy number.

978000500 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 4 ways, for example, as 121969936 + 856030564 = 11044^2 + 29258^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 977501 + ... + 978500.

It is an arithmetic number, because the mean of its divisors is an integer number (88998091).

Almost surely, 2^978000500 is an apocalyptic number.

It is an amenable number.

978000500 is an abundant number, since it is smaller than the sum of its proper divisors (1157953684).

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

978000500 is a wasteful number, since it uses less digits than its factorization.

978000500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956020 (or 1956008 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 978000500 is about 31272.9995363412. Note that the first 3 decimals coincide. The cubic root of 978000500 is about 992.6123909633.

Adding to 978000500 its sum of digits (29), we get a square (978000529 = 31273²).

The spelling of 978000500 in words is "nine hundred seventy-eight million, five hundred", and thus it is an aban number.