8944991 has 16 divisors (see below), whose sum is σ = 10383360. Its totient is φ = 7620480.

The previous prime is 8944973. The next prime is 8945003. The reversal of 8944991 is 1994498.

It is a cyclic number.

It is not a de Polignac number, because 8944991 - 2⁶ = 8944927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8944291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26375 + ... + 26711.

It is an arithmetic number, because the mean of its divisors is an integer number (648960).

Almost surely, 2^8944991 is an apocalyptic number.

8944991 is a deficient number, since it is larger than the sum of its proper divisors (1438369).

8944991 is a wasteful number, since it uses less digits than its factorization.

8944991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494.

The product of its digits is 93312, while the sum is 44.

The square root of 8944991 is about 2990.8177811428. The cubic root of 8944991 is about 207.5837258290.

It can be divided in two parts, 894 and 4991, that added together give a palindrome (5885).

The spelling of 8944991 in words is "eight million, nine hundred forty-four thousand, nine hundred ninety-one".