9772645 has 8 divisors (see below), whose sum is σ = 11859480. Its totient is φ = 7729920.

The previous prime is 9772643. The next prime is 9772661. The reversal of 9772645 is 5462779.

9772645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 910116 + 8862529 = 954^2 + 2977^2 .

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

It is not a de Polignac number, because 9772645 - 2¹ = 9772643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9772598 and 9772607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9772643) 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, 10536 + ... + 11425.

It is an arithmetic number, because the mean of its divisors is an integer number (1482435).

Almost surely, 2^9772645 is an apocalyptic number.

It is an amenable number.

9772645 is a deficient number, since it is larger than the sum of its proper divisors (2086835).

9772645 is a wasteful number, since it uses less digits than its factorization.

9772645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22055.

The product of its digits is 105840, while the sum is 40.

The square root of 9772645 is about 3126.1229982200. The cubic root of 9772645 is about 213.7981982666.

The spelling of 9772645 in words is "nine million, seven hundred seventy-two thousand, six hundred forty-five".