8662945 has 8 divisors (see below), whose sum is σ = 11007144. Its totient is φ = 6522624.

The previous prime is 8662943. The next prime is 8662963. The reversal of 8662945 is 5492668.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2547216 + 6115729 = 1596^2 + 2473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8662945 - 2¹ = 8662943 is a prime.

It is a Duffinian number.

8662945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8662898 and 8662907.

It is not an unprimeable number, because it can be changed into a prime (8662943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50874 + ... + 51043.

It is an arithmetic number, because the mean of its divisors is an integer number (1375893).

Almost surely, 2^8662945 is an apocalyptic number.

8662945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8662945 is a deficient number, since it is larger than the sum of its proper divisors (2344199).

8662945 is a wasteful number, since it uses less digits than its factorization.

8662945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101939.

The product of its digits is 103680, while the sum is 40.

The square root of 8662945 is about 2943.2881272482. The cubic root of 8662945 is about 205.3785984028.

The spelling of 8662945 in words is "eight million, six hundred sixty-two thousand, nine hundred forty-five".