20826766 has 8 divisors (see below), whose sum is σ = 31362480. Its totient is φ = 10372608.

The previous prime is 20826697. The next prime is 20826791. The reversal of 20826766 is 66762802.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19746 + ... + 20773.

It is an arithmetic number, because the mean of its divisors is an integer number (3920310).

Almost surely, 2^20826766 is an apocalyptic number.

20826766 is a deficient number, since it is larger than the sum of its proper divisors (10535714).

20826766 is a wasteful number, since it uses less digits than its factorization.

20826766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40778.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 20826766 is about 4563.6351738499. The cubic root of 20826766 is about 275.1316878934.

The spelling of 20826766 in words is "twenty million, eight hundred twenty-six thousand, seven hundred sixty-six".