48709891 has 4 divisors (see below), whose sum is σ = 48734784. Its totient is φ = 48685000.

The previous prime is 48709889. The next prime is 48709933. The reversal of 48709891 is 19890784.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 48709891 - 2¹ = 48709889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48709831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9235 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (12183696).

Almost surely, 2^48709891 is an apocalyptic number.

48709891 is a deficient number, since it is larger than the sum of its proper divisors (24893).

48709891 is a wasteful number, since it uses less digits than its factorization.

48709891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24892.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 48709891 is about 6979.2471657049. The cubic root of 48709891 is about 365.2069658771.

The spelling of 48709891 in words is "forty-eight million, seven hundred nine thousand, eight hundred ninety-one".