20726733 has 8 divisors (see below), whose sum is σ = 27676000. Its totient is φ = 13797648.

The previous prime is 20726711. The next prime is 20726737. The reversal of 20726733 is 33762702.

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

It is not a de Polignac number, because 20726733 - 2⁸ = 20726477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20726733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20726737) 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, 2458 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (3459500).

Almost surely, 2^20726733 is an apocalyptic number.

It is an amenable number.

20726733 is a deficient number, since it is larger than the sum of its proper divisors (6949267).

20726733 is an equidigital number, since it uses as much as digits as its factorization.

20726733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10091.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 20726733 is about 4552.6621882147. The cubic root of 20726733 is about 274.6904859306.

The spelling of 20726733 in words is "twenty million, seven hundred twenty-six thousand, seven hundred thirty-three".