978067388 has 6 divisors (see below), whose sum is σ = 1711617936. Its totient is φ = 489033692.

The previous prime is 978067381. The next prime is 978067421. The reversal of 978067388 is 883760879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978067381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122258420 + ... + 122258427.

It is an arithmetic number, because the mean of its divisors is an integer number (285269656).

Almost surely, 2^978067388 is an apocalyptic number.

It is an amenable number.

978067388 is a deficient number, since it is larger than the sum of its proper divisors (733550548).

978067388 is a wasteful number, since it uses less digits than its factorization.

978067388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244516851 (or 244516849 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 978067388 is about 31274.0689389788. The cubic root of 978067388 is about 992.6350195625.

The spelling of 978067388 in words is "nine hundred seventy-eight million, sixty-seven thousand, three hundred eighty-eight".