20048887 has 4 divisors (see below), whose sum is σ = 20150856. Its totient is φ = 19946920.

The previous prime is 20048881. The next prime is 20048923. The reversal of 20048887 is 78884002.

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 20048887 - 2¹¹ = 20046839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50689 + ... + 51082.

It is an arithmetic number, because the mean of its divisors is an integer number (5037714).

Almost surely, 2^20048887 is an apocalyptic number.

20048887 is a deficient number, since it is larger than the sum of its proper divisors (101969).

20048887 is a wasteful number, since it uses less digits than its factorization.

20048887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101968.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 20048887 is about 4477.5983517953. The cubic root of 20048887 is about 271.6627479246.

The spelling of 20048887 in words is "twenty million, forty-eight thousand, eight hundred eighty-seven".