8869945 has 8 divisors (see below), whose sum is σ = 12164544. Its totient is φ = 6082224.

The previous prime is 8869919. The next prime is 8869951. The reversal of 8869945 is 5499688.

It is a happy number.

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 8869945 - 2²¹ = 6772793 is a prime.

8869945 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126679 + ... + 126748.

It is an arithmetic number, because the mean of its divisors is an integer number (1520568).

Almost surely, 2^8869945 is an apocalyptic number.

It is an amenable number.

8869945 is a deficient number, since it is larger than the sum of its proper divisors (3294599).

8869945 is a wasteful number, since it uses less digits than its factorization.

8869945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253439.

The product of its digits is 622080, while the sum is 49.

The square root of 8869945 is about 2978.2452887565. The cubic root of 8869945 is about 207.0015713977.

The spelling of 8869945 in words is "eight million, eight hundred sixty-nine thousand, nine hundred forty-five".