48979649 has 2 divisors, whose sum is σ = 48979650. Its totient is φ = 48979648.

The previous prime is 48979643. The next prime is 48979691. The reversal of 48979649 is 94697984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48205249 + 774400 = 6943^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 48979649 - 2⁴ = 48979633 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 48979594 and 48979603.

It is not a weakly prime, because it can be changed into another prime (48979643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24489824 + 24489825.

It is an arithmetic number, because the mean of its divisors is an integer number (24489825).

Almost surely, 2^48979649 is an apocalyptic number.

It is an amenable number.

48979649 is a deficient number, since it is larger than the sum of its proper divisors (1).

48979649 is an equidigital number, since it uses as much as digits as its factorization.

48979649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 56.

The square root of 48979649 is about 6998.5462061774. The cubic root of 48979649 is about 365.8799037623.

The spelling of 48979649 in words is "forty-eight million, nine hundred seventy-nine thousand, six hundred forty-nine".