21760773 has 8 divisors (see below), whose sum is σ = 29798688. Its totient is φ = 14115024.

The previous prime is 21760763. The next prime is 21760801. The reversal of 21760773 is 37706712.

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

It is not a de Polignac number, because 21760773 - 2⁵ = 21760741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21760733) 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, 97911 + ... + 98132.

It is an arithmetic number, because the mean of its divisors is an integer number (3724836).

Almost surely, 2^21760773 is an apocalyptic number.

It is an amenable number.

21760773 is a deficient number, since it is larger than the sum of its proper divisors (8037915).

21760773 is a wasteful number, since it uses less digits than its factorization.

21760773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196083.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 21760773 is about 4664.8443703944. The cubic root of 21760773 is about 279.1845877062.

The spelling of 21760773 in words is "twenty-one million, seven hundred sixty thousand, seven hundred seventy-three".