14009661 has 12 divisors (see below), whose sum is σ = 20423260. Its totient is φ = 9253440.

The previous prime is 14009651. The next prime is 14009663. The reversal of 14009661 is 16690041.

It can be written as a sum of positive squares in 2 ways, for example, as 3218436 + 10791225 = 1794^2 + 3285^2 .

It is not a de Polignac number, because 14009661 - 2¹³ = 14001469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14009663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6160 + ... + 8121.

Almost surely, 2^14009661 is an apocalyptic number.

It is an amenable number.

14009661 is a deficient number, since it is larger than the sum of its proper divisors (6413599).

14009661 is a wasteful number, since it uses less digits than its factorization.

14009661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14396 (or 14393 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 14009661 is about 3742.9481695583. The cubic root of 14009661 is about 241.0696526806.

The spelling of 14009661 in words is "fourteen million, nine thousand, six hundred sixty-one".