20764353 has 4 divisors (see below), whose sum is σ = 27685808. Its totient is φ = 13842900.

The previous prime is 20764351. The next prime is 20764357. The reversal of 20764353 is 35346702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20764353 - 2¹ = 20764351 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 20764353.

It is not an unprimeable number, because it can be changed into a prime (20764351) 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 3 ways as a sum of consecutive naturals, for example, 3460723 + ... + 3460728.

It is an arithmetic number, because the mean of its divisors is an integer number (6921452).

Almost surely, 2^20764353 is an apocalyptic number.

It is an amenable number.

20764353 is a deficient number, since it is larger than the sum of its proper divisors (6921455).

20764353 is an equidigital number, since it uses as much as digits as its factorization.

20764353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921454.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 20764353 is about 4556.7919636516. The cubic root of 20764353 is about 274.8565775546.

The spelling of 20764353 in words is "twenty million, seven hundred sixty-four thousand, three hundred fifty-three".