9772445 has 4 divisors (see below), whose sum is σ = 11726940. Its totient is φ = 7817952.

The previous prime is 9772423. The next prime is 9772453. The reversal of 9772445 is 5442779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5442779 = 227 ⋅23977.

It can be written as a sum of positive squares in 2 ways, for example, as 7279204 + 2493241 = 2698^2 + 1579^2 .

It is a cyclic number.

It is not a de Polignac number, because 9772445 - 2¹⁸ = 9510301 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9772399 and 9772408.

It is a congruent number.

It is an unprimeable number.

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, 977240 + ... + 977249.

It is an arithmetic number, because the mean of its divisors is an integer number (2931735).

Almost surely, 2^9772445 is an apocalyptic number.

It is an amenable number.

9772445 is a deficient number, since it is larger than the sum of its proper divisors (1954495).

9772445 is a wasteful number, since it uses less digits than its factorization.

9772445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954494.

The product of its digits is 70560, while the sum is 38.

The square root of 9772445 is about 3126.0910095517. The cubic root of 9772445 is about 213.7967397760.

The spelling of 9772445 in words is "nine million, seven hundred seventy-two thousand, four hundred forty-five".