8991395 has 16 divisors (see below), whose sum is σ = 12730368. Its totient is φ = 5965920.

The previous prime is 8991383. The next prime is 8991401. The reversal of 8991395 is 5931998.

It is not a de Polignac number, because 8991395 - 2⁴ = 8991379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3059 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (795648).

Almost surely, 2^8991395 is an apocalyptic number.

8991395 is a deficient number, since it is larger than the sum of its proper divisors (3738973).

8991395 is a wasteful number, since it uses less digits than its factorization.

8991395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330.

The product of its digits is 87480, while the sum is 44.

The square root of 8991395 is about 2998.5654903637. The cubic root of 8991395 is about 207.9420681243.

The spelling of 8991395 in words is "eight million, nine hundred ninety-one thousand, three hundred ninety-five".