8690449 has 8 divisors (see below), whose sum is σ = 8964200. Its totient is φ = 8418816.

The previous prime is 8690413. The next prime is 8690453. The reversal of 8690449 is 9440968.

It can be written as a sum of positive squares in 4 ways, for example, as 3214849 + 5475600 = 1793^2 + 2340^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8690449 - 2¹⁵ = 8657681 is a prime.

It is a super-6 number, since 6×8690449⁶ (a number of 43 digits) contains 666666 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8690489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12577 + ... + 13249.

It is an arithmetic number, because the mean of its divisors is an integer number (1120525).

Almost surely, 2^8690449 is an apocalyptic number.

It is an amenable number.

8690449 is a deficient number, since it is larger than the sum of its proper divisors (273751).

8690449 is a wasteful number, since it uses less digits than its factorization.

8690449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 8690449 is about 2947.9567500220. The cubic root of 8690449 is about 205.5957210801.

The spelling of 8690449 in words is "eight million, six hundred ninety thousand, four hundred forty-nine".