8469949 has 4 divisors (see below), whose sum is σ = 8503164. Its totient is φ = 8436736.

The previous prime is 8469931. The next prime is 8469973. The reversal of 8469949 is 9499648.

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 8305924 + 164025 = 2882^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 8469949 - 2¹³ = 8461757 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 (8469919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16222 + ... + 16735.

It is an arithmetic number, because the mean of its divisors is an integer number (2125791).

Almost surely, 2^8469949 is an apocalyptic number.

It is an amenable number.

8469949 is a deficient number, since it is larger than the sum of its proper divisors (33215).

8469949 is a wasteful number, since it uses less digits than its factorization.

8469949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33214.

The product of its digits is 559872, while the sum is 49.

The square root of 8469949 is about 2910.3176802542. The cubic root of 8469949 is about 203.8419655847.

It can be divided in two parts, 84699 and 49, that added together give a palindrome (84748).

The spelling of 8469949 in words is "eight million, four hundred sixty-nine thousand, nine hundred forty-nine".