8641672 has 16 divisors (see below), whose sum is σ = 17449740. Its totient is φ = 3988416.

The previous prime is 8641669. The next prime is 8641673. The reversal of 8641672 is 2761468.

8641672 is digitally balanced in base 5, 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 2 ways, for example, as 8213956 + 427716 = 2866^2 + 654^2 .

It is not an unprimeable number, because it can be changed into a prime (8641673) 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, 41443 + ... + 41650.

Almost surely, 2^8641672 is an apocalyptic number.

It is an amenable number.

8641672 is an abundant number, since it is smaller than the sum of its proper divisors (8808068).

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

8641672 is a wasteful number, since it uses less digits than its factorization.

8641672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83112 (or 83108 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 8641672 is about 2939.6720905570. The cubic root of 8641672 is about 205.2103492279.

The spelling of 8641672 in words is "eight million, six hundred forty-one thousand, six hundred seventy-two".