48787778 has 8 divisors (see below), whose sum is σ = 78811068. Its totient is φ = 22517424.

The previous prime is 48787771. The next prime is 48787811. The reversal of 48787778 is 87778784.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44448889 + 4338889 = 6667^2 + 2083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (48787771) 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 in 3 ways as a sum of consecutive naturals, for example, 938201 + ... + 938252.

Almost surely, 2^48787778 is an apocalyptic number.

48787778 is a deficient number, since it is larger than the sum of its proper divisors (30023290).

48787778 is a wasteful number, since it uses less digits than its factorization.

48787778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876468.

The product of its digits is 4917248, while the sum is 56.

The square root of 48787778 is about 6984.8248367443. The cubic root of 48787778 is about 365.4015172419.

The spelling of 48787778 in words is "forty-eight million, seven hundred eighty-seven thousand, seven hundred seventy-eight".