48189891 has 8 divisors (see below), whose sum is σ = 64915984. Its totient is φ = 31795200.

The previous prime is 48189877. The next prime is 48189907. The reversal of 48189891 is 19898184.

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

It is not a de Polignac number, because 48189891 - 2¹⁰ = 48188867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48189891.

It is not an unprimeable number, because it can be changed into a prime (48189811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82510 + ... + 83091.

It is an arithmetic number, because the mean of its divisors is an integer number (8114498).

Almost surely, 2^48189891 is an apocalyptic number.

48189891 is a deficient number, since it is larger than the sum of its proper divisors (16726093).

48189891 is a wasteful number, since it uses less digits than its factorization.

48189891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165701.

The product of its digits is 165888, while the sum is 48.

The square root of 48189891 is about 6941.8939058444. The cubic root of 48189891 is about 363.9027308225.

The spelling of 48189891 in words is "forty-eight million, one hundred eighty-nine thousand, eight hundred ninety-one".