8472644 has 12 divisors (see below), whose sum is σ = 14855484. Its totient is φ = 4228224.

The previous prime is 8472631. The next prime is 8472649. The reversal of 8472644 is 4462748.

It can be written as a sum of positive squares in 2 ways, for example, as 1236544 + 7236100 = 1112^2 + 2690^2 .

It is not an unprimeable number, because it can be changed into a prime (8472649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752 + ... + 4184.

It is an arithmetic number, because the mean of its divisors is an integer number (1237957).

Almost surely, 2^8472644 is an apocalyptic number.

It is an amenable number.

8472644 is a deficient number, since it is larger than the sum of its proper divisors (6382840).

8472644 is a wasteful number, since it uses less digits than its factorization.

8472644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054 (or 4052 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 8472644 is about 2910.7806513030. The cubic root of 8472644 is about 203.8635830247.

The spelling of 8472644 in words is "eight million, four hundred seventy-two thousand, six hundred forty-four".