20696582 has 16 divisors (see below), whose sum is σ = 33184080. Its totient is φ = 9646848.

The previous prime is 20696581. The next prime is 20696587. The reversal of 20696582 is 28569602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20696581) 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 7 ways as a sum of consecutive naturals, for example, 794 + ... + 6482.

It is an arithmetic number, because the mean of its divisors is an integer number (2074005).

Almost surely, 2^20696582 is an apocalyptic number.

20696582 is a deficient number, since it is larger than the sum of its proper divisors (12487498).

20696582 is a wasteful number, since it uses less digits than its factorization.

20696582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 20696582 is about 4549.3496238473. The cubic root of 20696582 is about 274.5572246636.

The spelling of 20696582 in words is "twenty million, six hundred ninety-six thousand, five hundred eighty-two".