12720698 has 4 divisors (see below), whose sum is σ = 19081050. Its totient is φ = 6360348.

The previous prime is 12720649. The next prime is 12720707. The reversal of 12720698 is 89602721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11175649 + 1545049 = 3343^2 + 1243^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3180173 + ... + 3180176.

Almost surely, 2^12720698 is an apocalyptic number.

12720698 is a deficient number, since it is larger than the sum of its proper divisors (6360352).

12720698 is an equidigital number, since it uses as much as digits as its factorization.

12720698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360351.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 12720698 is about 3566.6087534239. The cubic root of 12720698 is about 233.4373336839.

The spelling of 12720698 in words is "twelve million, seven hundred twenty thousand, six hundred ninety-eight".