9773440 has 32 divisors (see below), whose sum is σ = 23366160. Its totient is φ = 3909120.

The previous prime is 9773431. The next prime is 9773441. The reversal of 9773440 is 443779.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 9773396 and 9773405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9773441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6996 + ... + 8275.

Almost surely, 2^9773440 is an apocalyptic number.

It is an amenable number.

9773440 is an abundant number, since it is smaller than the sum of its proper divisors (13592720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9773440 is a wasteful number, since it uses less digits than its factorization.

9773440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15290 (or 15278 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 9773440 is about 3126.2501499400. The cubic root of 9773440 is about 213.8039955698.

It can be divided in two parts, 97 and 73440, that added together give a palindrome (73537).

The spelling of 9773440 in words is "nine million, seven hundred seventy-three thousand, four hundred forty".