6436469 has 4 divisors (see below), whose sum is σ = 6931596. Its totient is φ = 5941344.

The previous prime is 6436457. The next prime is 6436501. The reversal of 6436469 is 9646346.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9646346 = 2 ⋅4823173.

It can be written as a sum of positive squares in 2 ways, for example, as 970225 + 5466244 = 985^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 6436469 - 2¹⁶ = 6370933 is a prime.

It is a super-2 number, since 2×6436469² = 82856266375922, 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 (6436769) 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, 247544 + ... + 247569.

It is an arithmetic number, because the mean of its divisors is an integer number (1732899).

Almost surely, 2^6436469 is an apocalyptic number.

It is an amenable number.

6436469 is a deficient number, since it is larger than the sum of its proper divisors (495127).

6436469 is a wasteful number, since it uses less digits than its factorization.

6436469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495126.

The product of its digits is 93312, while the sum is 38.

The square root of 6436469 is about 2537.0197082404. The cubic root of 6436469 is about 186.0155399973.

The spelling of 6436469 in words is "six million, four hundred thirty-six thousand, four hundred sixty-nine".