48391881 has 8 divisors (see below), whose sum is σ = 65247840. Its totient is φ = 31898592.

The previous prime is 48391867. The next prime is 48391883. The reversal of 48391881 is 18819384.

48391881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48391881 - 2⁶ = 48391817 is a prime.

It is a super-2 number, since 2×48391881² = 4683548293436322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48391883) 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 7 ways as a sum of consecutive naturals, for example, 90355 + ... + 90888.

It is an arithmetic number, because the mean of its divisors is an integer number (8155980).

Almost surely, 2^48391881 is an apocalyptic number.

It is an amenable number.

48391881 is a deficient number, since it is larger than the sum of its proper divisors (16855959).

48391881 is a wasteful number, since it uses less digits than its factorization.

48391881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181335.

The product of its digits is 55296, while the sum is 42.

The square root of 48391881 is about 6956.4273157994. The cubic root of 48391881 is about 364.4104600729.

The spelling of 48391881 in words is "forty-eight million, three hundred ninety-one thousand, eight hundred eighty-one".