8561672 has 24 divisors (see below), whose sum is σ = 18674910. Its totient is φ = 3669120.

The previous prime is 8561633. The next prime is 8561701. The reversal of 8561672 is 2761658.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 196 = 2926^2 + 14^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10529 + ... + 11312.

Almost surely, 2^8561672 is an apocalyptic number.

It is an amenable number.

8561672 is an abundant number, since it is smaller than the sum of its proper divisors (10113238).

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

8561672 is a wasteful number, since it uses less digits than its factorization.

8561672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21861 (or 21850 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 8561672 is about 2926.0334926313. The cubic root of 8561672 is about 204.5751423097.

The spelling of 8561672 in words is "eight million, five hundred sixty-one thousand, six hundred seventy-two".