12664354 has 8 divisors (see below), whose sum is σ = 20114028. Its totient is φ = 5959680.

The previous prime is 12664343. The next prime is 12664357. The reversal of 12664354 is 45346621.

It can be written as a sum of positive squares in 2 ways, for example, as 10017225 + 2647129 = 3165^2 + 1627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12664357) 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, 186207 + ... + 186274.

Almost surely, 2^12664354 is an apocalyptic number.

12664354 is a deficient number, since it is larger than the sum of its proper divisors (7449674).

12664354 is a wasteful number, since it uses less digits than its factorization.

12664354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372500.

The product of its digits is 17280, while the sum is 31.

The square root of 12664354 is about 3558.7011675610. The cubic root of 12664354 is about 233.0921676049.

The spelling of 12664354 in words is "twelve million, six hundred sixty-four thousand, three hundred fifty-four".