12787498 has 4 divisors (see below), whose sum is σ = 19181250. Its totient is φ = 6393748.

The previous prime is 12787447. The next prime is 12787499. The reversal of 12787498 is 89478721.

12787498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89478721 = 241 ⋅371281.

It can be written as a sum of positive squares in only one way, i.e., 12723489 + 64009 = 3567^2 + 253^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12787499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3196873 + ... + 3196876.

Almost surely, 2^12787498 is an apocalyptic number.

12787498 is a deficient number, since it is larger than the sum of its proper divisors (6393752).

12787498 is an equidigital number, since it uses as much as digits as its factorization.

12787498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393751.

The product of its digits is 225792, while the sum is 46.

The square root of 12787498 is about 3575.9611295427. The cubic root of 12787498 is about 233.8452357698.

The spelling of 12787498 in words is "twelve million, seven hundred eighty-seven thousand, four hundred ninety-eight".