48918889 has 4 divisors (see below), whose sum is σ = 49720900. Its totient is φ = 48116880.

The previous prime is 48918887. The next prime is 48918893. The reversal of 48918889 is 98881984.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20403289 + 28515600 = 4517^2 + 5340^2 .

It is a cyclic number.

It is not a de Polignac number, because 48918889 - 2¹ = 48918887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48918887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400914 + ... + 401035.

It is an arithmetic number, because the mean of its divisors is an integer number (12430225).

Almost surely, 2^48918889 is an apocalyptic number.

It is an amenable number.

48918889 is a deficient number, since it is larger than the sum of its proper divisors (802011).

48918889 is an equidigital number, since it uses as much as digits as its factorization.

48918889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802010.

The product of its digits is 1327104, while the sum is 55.

The square root of 48918889 is about 6994.2039575637. The cubic root of 48918889 is about 365.7285479624.

The spelling of 48918889 in words is "forty-eight million, nine hundred eighteen thousand, eight hundred eighty-nine".