48987009 has 12 divisors (see below), whose sum is σ = 70896852. Its totient is φ = 32594400.

The previous prime is 48986981. The next prime is 48987023. The reversal of 48987009 is 90078984.

It can be written as a sum of positive squares in 2 ways, for example, as 23736384 + 25250625 = 4872^2 + 5025^2 .

It is not a de Polignac number, because 48987009 - 2⁷ = 48986881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48987049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162 + ... + 9899.

It is an arithmetic number, because the mean of its divisors is an integer number (5908071).

Almost surely, 2^48987009 is an apocalyptic number.

It is an amenable number.

48987009 is a deficient number, since it is larger than the sum of its proper divisors (21909843).

48987009 is a wasteful number, since it uses less digits than its factorization.

48987009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10608 (or 10605 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 48987009 is about 6999.0720099167. The cubic root of 48987009 is about 365.8982293409.

The spelling of 48987009 in words is "forty-eight million, nine hundred eighty-seven thousand, nine".