48609979 has 4 divisors (see below), whose sum is σ = 53029080. Its totient is φ = 44190880.

The previous prime is 48609949. The next prime is 48609991. The reversal of 48609979 is 97990684.

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 48609979 - 2¹⁹ = 48085691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48609949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209534 + ... + 2209555.

It is an arithmetic number, because the mean of its divisors is an integer number (13257270).

Almost surely, 2^48609979 is an apocalyptic number.

48609979 is a deficient number, since it is larger than the sum of its proper divisors (4419101).

48609979 is a wasteful number, since it uses less digits than its factorization.

48609979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419100.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 48609979 is about 6972.0856994159. The cubic root of 48609979 is about 364.9570951007.

The spelling of 48609979 in words is "forty-eight million, six hundred nine thousand, nine hundred seventy-nine".