8549972 has 6 divisors (see below), whose sum is σ = 14962458. Its totient is φ = 4274984.

The previous prime is 8549969. The next prime is 8550001. The reversal of 8549972 is 2799458.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8549776 + 196 = 2924^2 + 14^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068743 + ... + 1068750.

It is an arithmetic number, because the mean of its divisors is an integer number (2493743).

Almost surely, 2^8549972 is an apocalyptic number.

It is an amenable number.

8549972 is a deficient number, since it is larger than the sum of its proper divisors (6412486).

8549972 is a wasteful number, since it uses less digits than its factorization.

8549972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137497 (or 2137495 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 8549972 is about 2924.0335155398. The cubic root of 8549972 is about 204.4819120664.

The spelling of 8549972 in words is "eight million, five hundred forty-nine thousand, nine hundred seventy-two".