9400669 has 4 divisors (see below), whose sum is σ = 9724860. Its totient is φ = 9076480.

The previous prime is 9400639. The next prime is 9400673. The reversal of 9400669 is 9660049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9660049 = 7 ⋅1380007.

It can be written as a sum of positive squares in 2 ways, for example, as 7868025 + 1532644 = 2805^2 + 1238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9400669 is a prime.

It is a super-2 number, since 2×9400669² = 176745155295122, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400619) 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, 162052 + ... + 162109.

It is an arithmetic number, because the mean of its divisors is an integer number (2431215).

Almost surely, 2^9400669 is an apocalyptic number.

It is an amenable number.

9400669 is a deficient number, since it is larger than the sum of its proper divisors (324191).

9400669 is a wasteful number, since it uses less digits than its factorization.

9400669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324190.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 9400669 is about 3066.0510432803. The cubic root of 9400669 is about 211.0504360463.

The spelling of 9400669 in words is "nine million, four hundred thousand, six hundred sixty-nine".