48889978 has 4 divisors (see below), whose sum is σ = 73334970. Its totient is φ = 24444988.

The previous prime is 48889963. The next prime is 48889979. The reversal of 48889978 is 87998884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45603009 + 3286969 = 6753^2 + 1813^2 .

It is not an unprimeable number, because it can be changed into a prime (48889979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12222493 + ... + 12222496.

Almost surely, 2^48889978 is an apocalyptic number.

48889978 is a deficient number, since it is larger than the sum of its proper divisors (24444992).

48889978 is a wasteful number, since it uses less digits than its factorization.

48889978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444991.

The product of its digits is 9289728, while the sum is 61.

The square root of 48889978 is about 6992.1368693698. The cubic root of 48889978 is about 365.6564853983.

The spelling of 48889978 in words is "forty-eight million, eight hundred eighty-nine thousand, nine hundred seventy-eight".