20675765 has 8 divisors (see below), whose sum is σ = 27066528. Its totient is φ = 15036880.

The previous prime is 20675761. The next prime is 20675779. The reversal of 20675765 is 56757602.

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

It is not a de Polignac number, because 20675765 - 2² = 20675761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187907 + ... + 188016.

It is an arithmetic number, because the mean of its divisors is an integer number (3383316).

Almost surely, 2^20675765 is an apocalyptic number.

It is an amenable number.

20675765 is a deficient number, since it is larger than the sum of its proper divisors (6390763).

20675765 is a wasteful number, since it uses less digits than its factorization.

20675765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375939.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 20675765 is about 4547.0611388016. The cubic root of 20675765 is about 274.4651422277.

The spelling of 20675765 in words is "twenty million, six hundred seventy-five thousand, seven hundred sixty-five".