8149469 has 4 divisors (see below), whose sum is σ = 8162460. Its totient is φ = 8136480.

The previous prime is 8149459. The next prime is 8149481. The reversal of 8149469 is 9649418.

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 2365444 + 5784025 = 1538^2 + 2405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8149469 is a prime.

It is a super-2 number, since 2×8149469² = 132827689963922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8149459) 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, 5504 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (2040615).

Almost surely, 2^8149469 is an apocalyptic number.

It is an amenable number.

8149469 is a deficient number, since it is larger than the sum of its proper divisors (12991).

8149469 is a wasteful number, since it uses less digits than its factorization.

8149469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12990.

The product of its digits is 62208, while the sum is 41.

The square root of 8149469 is about 2854.7274826155. The cubic root of 8149469 is about 201.2378972442.

The spelling of 8149469 in words is "eight million, one hundred forty-nine thousand, four hundred sixty-nine".