20653084 has 12 divisors (see below), whose sum is σ = 36202824. Its totient is φ = 10309424.

The previous prime is 20653081. The next prime is 20653091. The reversal of 20653084 is 48035602.

It is a super-2 number, since 2×20653084² = 853099757422112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20653081) 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, 1342 + ... + 6565.

It is an arithmetic number, because the mean of its divisors is an integer number (3016902).

Almost surely, 2^20653084 is an apocalyptic number.

It is an amenable number.

20653084 is a deficient number, since it is larger than the sum of its proper divisors (15549740).

20653084 is a wasteful number, since it uses less digits than its factorization.

20653084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564 (or 8562 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20653084 is about 4544.5664259641. The cubic root of 20653084 is about 274.3647441437.

Adding to 20653084 its reverse (48035602), we get a palindrome (68688686).

The spelling of 20653084 in words is "twenty million, six hundred fifty-three thousand, eighty-four".