20699682 has 8 divisors (see below), whose sum is σ = 41399376. Its totient is φ = 6899892.

The previous prime is 20699671. The next prime is 20699713. The reversal of 20699682 is 28699602.

It is a sphenic number, since it is the product of 3 distinct primes.

20699682 is an admirable number.

It is a super-2 number, since 2×20699682² = 856953669802248, which contains 22 as substring.

It is an unprimeable number.

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, 1724968 + ... + 1724979.

It is an arithmetic number, because the mean of its divisors is an integer number (5174922).

Almost surely, 2^20699682 is an apocalyptic number.

20699682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20699682 is a wasteful number, since it uses less digits than its factorization.

20699682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449952.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 20699682 is about 4549.6903191316. The cubic root of 20699682 is about 274.5709319979.

The spelling of 20699682 in words is "twenty million, six hundred ninety-nine thousand, six hundred eighty-two".