48478989 has 16 divisors (see below), whose sum is σ = 70653632. Its totient is φ = 29386368.

The previous prime is 48478973. The next prime is 48478993. The reversal of 48478989 is 98987484.

It is not a de Polignac number, because 48478989 - 2⁴ = 48478973 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 (48478939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6664 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (4415852).

Almost surely, 2^48478989 is an apocalyptic number.

It is an amenable number.

48478989 is a deficient number, since it is larger than the sum of its proper divisors (22174643).

48478989 is a wasteful number, since it uses less digits than its factorization.

48478989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18636.

The product of its digits is 4644864, while the sum is 57.

The square root of 48478989 is about 6962.6854732926. The cubic root of 48478989 is about 364.6289818463.

The spelling of 48478989 in words is "forty-eight million, four hundred seventy-eight thousand, nine hundred eighty-nine".