48779989 has 4 divisors (see below), whose sum is σ = 48810400. Its totient is φ = 48749580.

The previous prime is 48779933. The next prime is 48779999. The reversal of 48779989 is 98997784.

48779989 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48779989 - 2¹¹ = 48777941 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 12657 + ... + 16054.

It is an arithmetic number, because the mean of its divisors is an integer number (12202600).

Almost surely, 2^48779989 is an apocalyptic number.

It is an amenable number.

48779989 is a deficient number, since it is larger than the sum of its proper divisors (30411).

48779989 is a wasteful number, since it uses less digits than its factorization.

48779989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30410.

The product of its digits is 9144576, while the sum is 61.

The square root of 48779989 is about 6984.2672486095. The cubic root of 48779989 is about 365.3820706782.

The spelling of 48779989 in words is "forty-eight million, seven hundred seventy-nine thousand, nine hundred eighty-nine".