20769854 has 8 divisors (see below), whose sum is σ = 35605488. Its totient is φ = 8901360.

The previous prime is 20769823. The next prime is 20769857. The reversal of 20769854 is 45896702.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20769857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741767 + ... + 741794.

It is an arithmetic number, because the mean of its divisors is an integer number (4450686).

Almost surely, 2^20769854 is an apocalyptic number.

20769854 is a deficient number, since it is larger than the sum of its proper divisors (14835634).

20769854 is a wasteful number, since it uses less digits than its factorization.

20769854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483570.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 20769854 is about 4557.3955281498. The cubic root of 20769854 is about 274.8808475544.

The spelling of 20769854 in words is "twenty million, seven hundred sixty-nine thousand, eight hundred fifty-four".