48778949 has 2 divisors, whose sum is σ = 48778950. Its totient is φ = 48778948.

The previous prime is 48778943. The next prime is 48778969. The reversal of 48778949 is 94987784.

48778949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48748324 + 30625 = 6982^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 48778949 - 2²⁴ = 32001733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48778894 and 48778903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48778943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24389474 + 24389475.

It is an arithmetic number, because the mean of its divisors is an integer number (24389475).

Almost surely, 2^48778949 is an apocalyptic number.

It is an amenable number.

48778949 is a deficient number, since it is larger than the sum of its proper divisors (1).

48778949 is an equidigital number, since it uses as much as digits as its factorization.

48778949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The square root of 48778949 is about 6984.1927951625. The cubic root of 48778949 is about 365.3794739846.

The spelling of 48778949 in words is "forty-eight million, seven hundred seventy-eight thousand, nine hundred forty-nine".