8670945 has 8 divisors (see below), whose sum is σ = 13873536. Its totient is φ = 4624496.

The previous prime is 8670943. The next prime is 8670947. The reversal of 8670945 is 5490768.

It is an interprime number because it is at equal distance from previous prime (8670943) and next prime (8670947).

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 8670945 - 2¹ = 8670943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8670941) 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, 289017 + ... + 289046.

It is an arithmetic number, because the mean of its divisors is an integer number (1734192).

Almost surely, 2^8670945 is an apocalyptic number.

It is an amenable number.

8670945 is a deficient number, since it is larger than the sum of its proper divisors (5202591).

8670945 is a wasteful number, since it uses less digits than its factorization.

8670945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578071.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 8670945 is about 2944.6468379077. The cubic root of 8670945 is about 205.4417995152.

The spelling of 8670945 in words is "eight million, six hundred seventy thousand, nine hundred forty-five".