20764682 has 16 divisors (see below), whose sum is σ = 32978400. Its totient is φ = 9778320.

The previous prime is 20764673. The next prime is 20764703. The reversal of 20764682 is 28646702.

It is a super-2 number, since 2×20764682² = 862344037122248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5369 + ... + 8387.

It is an arithmetic number, because the mean of its divisors is an integer number (2061150).

Almost surely, 2^20764682 is an apocalyptic number.

20764682 is a deficient number, since it is larger than the sum of its proper divisors (12213718).

20764682 is a wasteful number, since it uses less digits than its factorization.

20764682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 20764682 is about 4556.8280634670. The cubic root of 20764682 is about 274.8580291985.

The spelling of 20764682 in words is "twenty million, seven hundred sixty-four thousand, six hundred eighty-two".