9472644 has 18 divisors (see below), whose sum is σ = 23944830. Its totient is φ = 3157536.

The previous prime is 9472643. The next prime is 9472649. The reversal of 9472644 is 4462749.

9472644 is a `hidden beast` number, since 9 + 4 + 7 + 2 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 1855044 = 2760^2 + 1362^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 263129 = 9472644 / (9 + 4 + 7 + 2 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 9472599 and 9472608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9472643) 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 5 ways as a sum of consecutive naturals, for example, 131529 + ... + 131600.

Almost surely, 2^9472644 is an apocalyptic number.

It is an amenable number.

9472644 is an abundant number, since it is smaller than the sum of its proper divisors (14472186).

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

9472644 is a wasteful number, since it uses less digits than its factorization.

9472644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263139 (or 263134 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 9472644 is about 3077.7660729822. The cubic root of 9472644 is about 211.5876939633.

The spelling of 9472644 in words is "nine million, four hundred seventy-two thousand, six hundred forty-four".