8916399 has 22 divisors (see below), whose sum is σ = 13463096. Its totient is φ = 5904900.

The previous prime is 8916389. The next prime is 8916403. The reversal of 8916399 is 9936198.

8916399 is a `hidden beast` number, since 8 + 9 + 1 + 639 + 9 = 666.

It is not a de Polignac number, because 8916399 - 2⁵ = 8916367 is a prime.

It is a super-2 number, since 2×8916399² = 159004342254402, which contains 22 as substring.

It is a Duffinian number.

8916399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8916329) by changing a digit.

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 21 ways as a sum of consecutive naturals, for example, 58974 + ... + 59124.

Almost surely, 2^8916399 is an apocalyptic number.

8916399 is a deficient number, since it is larger than the sum of its proper divisors (4546697).

8916399 is an frugal number, since it uses more digits than its factorization.

8916399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 154 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 8916399 is about 2986.0339917690. The cubic root of 8916399 is about 207.3623144273.

The spelling of 8916399 in words is "eight million, nine hundred sixteen thousand, three hundred ninety-nine".