948663978 has 16 divisors (see below), whose sum is σ = 1898894016. Its totient is φ = 315960320.

The previous prime is 948663967. The next prime is 948663997. The reversal of 948663978 is 879366849.

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, 57303 + ... + 71978.

It is an arithmetic number, because the mean of its divisors is an integer number (118680876).

Almost surely, 2^948663978 is an apocalyptic number.

948663978 is an abundant number, since it is smaller than the sum of its proper divisors (950230038).

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

948663978 is a wasteful number, since it uses less digits than its factorization.

948663978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130509.

The product of its digits is 15676416, while the sum is 60.

The square root of 948663978 is about 30800.3892507871. The cubic root of 948663978 is about 982.5865235975.

The spelling of 948663978 in words is "nine hundred forty-eight million, six hundred sixty-three thousand, nine hundred seventy-eight".