48397978 has 24 divisors (see below), whose sum is σ = 77803200. Its totient is φ = 22516704.

The previous prime is 48397969. The next prime is 48397991. The reversal of 48397978 is 87979384.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202383 + ... + 202621.

It is an arithmetic number, because the mean of its divisors is an integer number (3241800).

Almost surely, 2^48397978 is an apocalyptic number.

48397978 is a deficient number, since it is larger than the sum of its proper divisors (29405222).

48397978 is a wasteful number, since it uses less digits than its factorization.

48397978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 333 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 55.

The square root of 48397978 is about 6956.8655298202. The cubic root of 48397978 is about 364.4257637232.

The spelling of 48397978 in words is "forty-eight million, three hundred ninety-seven thousand, nine hundred seventy-eight".