20884958 has 8 divisors (see below), whose sum is σ = 31705128. Its totient is φ = 10316584.

The previous prime is 20884951. The next prime is 20885003. The reversal of 20884958 is 85948802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20884951) 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, 62741 + ... + 63072.

It is an arithmetic number, because the mean of its divisors is an integer number (3963141).

Almost surely, 2^20884958 is an apocalyptic number.

20884958 is a deficient number, since it is larger than the sum of its proper divisors (10820170).

20884958 is a wasteful number, since it uses less digits than its factorization.

20884958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125898.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 20884958 is about 4570.0063457286. The cubic root of 20884958 is about 275.3876977910.

The spelling of 20884958 in words is "twenty million, eight hundred eighty-four thousand, nine hundred fifty-eight".