948009978 has 24 divisors (see below), whose sum is σ = 2162128800. Its totient is φ = 299371464.

The previous prime is 948009961. The next prime is 948010013. The reversal of 948009978 is 879900849.

948009978 is a `hidden beast` number, since 9 + 480 + 0 + 99 + 78 = 666.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 1385638 + ... + 1386321.

It is an arithmetic number, because the mean of its divisors is an integer number (90088700).

Almost surely, 2^948009978 is an apocalyptic number.

948009978 is an abundant number, since it is smaller than the sum of its proper divisors (1214118822).

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

948009978 is a wasteful number, since it uses less digits than its factorization.

948009978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771986 (or 2771983 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 948009978 is about 30789.7706714422. The cubic root of 948009978 is about 982.3606763963.

The spelling of 948009978 in words is "nine hundred forty-eight million, nine thousand, nine hundred seventy-eight".