8911945 has 8 divisors (see below), whose sum is σ = 12222144. Its totient is φ = 6111024.

The previous prime is 8911933. The next prime is 8911963. The reversal of 8911945 is 5491198.

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 8911945 - 2⁹ = 8911433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127279 + ... + 127348.

It is an arithmetic number, because the mean of its divisors is an integer number (1527768).

Almost surely, 2^8911945 is an apocalyptic number.

It is an amenable number.

8911945 is a deficient number, since it is larger than the sum of its proper divisors (3310199).

8911945 is a wasteful number, since it uses less digits than its factorization.

8911945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254639.

The product of its digits is 12960, while the sum is 37.

The square root of 8911945 is about 2985.2880933002. The cubic root of 8911945 is about 207.3277808457.

The spelling of 8911945 in words is "eight million, nine hundred eleven thousand, nine hundred forty-five".