20750763 has 8 divisors (see below), whose sum is σ = 30182976. Its totient is φ = 12576200.

The previous prime is 20750701. The next prime is 20750767. The reversal of 20750763 is 36705702.

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

It is a cyclic number.

It is not a de Polignac number, because 20750763 - 2¹⁶ = 20685227 is a prime.

It is a super-3 number, since 3×20750763³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20750763.

It is not an unprimeable number, because it can be changed into a prime (20750767) 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, 314373 + ... + 314438.

It is an arithmetic number, because the mean of its divisors is an integer number (3772872).

Almost surely, 2^20750763 is an apocalyptic number.

20750763 is a deficient number, since it is larger than the sum of its proper divisors (9432213).

20750763 is a wasteful number, since it uses less digits than its factorization.

20750763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628825.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 20750763 is about 4555.3005389326. The cubic root of 20750763 is about 274.7966011119.

The spelling of 20750763 in words is "twenty million, seven hundred fifty thousand, seven hundred sixty-three".