48779979 has 4 divisors (see below), whose sum is σ = 65039976. Its totient is φ = 32519984.

The previous prime is 48779933. The next prime is 48779999. The reversal of 48779979 is 97997784.

48779979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 48779979 - 2¹¹ = 48777931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48779999) 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 in 3 ways as a sum of consecutive naturals, for example, 8129994 + ... + 8129999.

It is an arithmetic number, because the mean of its divisors is an integer number (16259994).

Almost surely, 2^48779979 is an apocalyptic number.

48779979 is a deficient number, since it is larger than the sum of its proper divisors (16259997).

48779979 is a wasteful number, since it uses less digits than its factorization.

48779979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259996.

The product of its digits is 8001504, while the sum is 60.

The square root of 48779979 is about 6984.2665327148. The cubic root of 48779979 is about 365.3820457102.

The spelling of 48779979 in words is "forty-eight million, seven hundred seventy-nine thousand, nine hundred seventy-nine".