20627812 has 12 divisors (see below), whose sum is σ = 36780156. Its totient is φ = 10119200.

The previous prime is 20627807. The next prime is 20627819. The reversal of 20627812 is 21872602.

It can be written as a sum of positive squares in 2 ways, for example, as 5308416 + 15319396 = 2304^2 + 3914^2 .

It is not an unprimeable number, because it can be changed into a prime (20627819) 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, 48439 + ... + 48862.

It is an arithmetic number, because the mean of its divisors is an integer number (3065013).

Almost surely, 2^20627812 is an apocalyptic number.

It is an amenable number.

20627812 is a deficient number, since it is larger than the sum of its proper divisors (16152344).

20627812 is a wasteful number, since it uses less digits than its factorization.

20627812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97358 (or 97356 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 20627812 is about 4541.7851116053. The cubic root of 20627812 is about 274.2527903086.

The spelling of 20627812 in words is "twenty million, six hundred twenty-seven thousand, eight hundred twelve".