8999481 has 4 divisors (see below), whose sum is σ = 11999312. Its totient is φ = 5999652.

The previous prime is 8999467. The next prime is 8999489. The reversal of 8999481 is 1849998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8999481 - 2¹³ = 8991289 is a prime.

It is a super-2 number, since 2×8999481² = 161981316538722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8999481.

It is not an unprimeable number, because it can be changed into a prime (8999489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499911 + ... + 1499916.

It is an arithmetic number, because the mean of its divisors is an integer number (2999828).

Almost surely, 2^8999481 is an apocalyptic number.

It is an amenable number.

8999481 is a deficient number, since it is larger than the sum of its proper divisors (2999831).

8999481 is a wasteful number, since it uses less digits than its factorization.

8999481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999830.

The product of its digits is 186624, while the sum is 48.

The square root of 8999481 is about 2999.9134987529. The cubic root of 8999481 is about 208.0043838450.

The spelling of 8999481 in words is "eight million, nine hundred ninety-nine thousand, four hundred eighty-one".