9640469 has 4 divisors (see below), whose sum is σ = 9647820. Its totient is φ = 9633120.

The previous prime is 9640457. The next prime is 9640481.

9640469 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (9640457) and next prime (9640481).

It can be written as a sum of positive squares in 2 ways, for example, as 6436369 + 3204100 = 2537^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 9640469 - 2¹² = 9636373 is a prime.

It is a super-2 number, since 2×9640469² = 185877285079922, 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 (9640489) 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, 1112 + ... + 4529.

It is an arithmetic number, because the mean of its divisors is an integer number (2411955).

Almost surely, 2^9640469 is an apocalyptic number.

It is an amenable number.

9640469 is a deficient number, since it is larger than the sum of its proper divisors (7351).

9640469 is a wasteful number, since it uses less digits than its factorization.

9640469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 9640469 is about 3104.9104656978. The cubic root of 9640469 is about 212.8299391258.

The spelling of 9640469 in words is "nine million, six hundred forty thousand, four hundred sixty-nine".