8818949 has 4 divisors (see below), whose sum is σ = 8909964. Its totient is φ = 8727936.

The previous prime is 8818933. The next prime is 8818961. The reversal of 8818949 is 9498188.

8818949 = T₃₇₇ + T₃₇₈ + ... + T₄₇₃.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5094049 + 3724900 = 2257^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 8818949 - 2⁴ = 8818933 is a prime.

It is a super-2 number, since 2×8818949² = 155547722929202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8818969) 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, 45362 + ... + 45555.

It is an arithmetic number, because the mean of its divisors is an integer number (2227491).

Almost surely, 2^8818949 is an apocalyptic number.

It is an amenable number.

8818949 is a deficient number, since it is larger than the sum of its proper divisors (91015).

8818949 is an equidigital number, since it uses as much as digits as its factorization.

8818949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91014.

The product of its digits is 165888, while the sum is 47.

The square root of 8818949 is about 2969.6715306579. The cubic root of 8818949 is about 206.6041037936.

The spelling of 8818949 in words is "eight million, eight hundred eighteen thousand, nine hundred forty-nine".