20827912 has 16 divisors (see below), whose sum is σ = 44631360. Its totient is φ = 8926224.

The previous prime is 20827897. The next prime is 20827913. The reversal of 20827912 is 21972802.

It is not an unprimeable number, because it can be changed into a prime (20827913) 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 3 ways as a sum of consecutive naturals, for example, 185908 + ... + 186019.

It is an arithmetic number, because the mean of its divisors is an integer number (2789460).

Almost surely, 2^20827912 is an apocalyptic number.

It is an amenable number.

20827912 is an abundant number, since it is smaller than the sum of its proper divisors (23803448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20827912 is a wasteful number, since it uses less digits than its factorization.

20827912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371940 (or 371936 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 20827912 is about 4563.7607299244. The cubic root of 20827912 is about 275.1367342063.

The spelling of 20827912 in words is "twenty million, eight hundred twenty-seven thousand, nine hundred twelve".