12892538 has 4 divisors (see below), whose sum is σ = 19338810. Its totient is φ = 6446268.

The previous prime is 12892519. The next prime is 12892541. The reversal of 12892538 is 83529821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83529821 = 193 ⋅432797.

It can be written as a sum of positive squares in only one way, i.e., 7524049 + 5368489 = 2743^2 + 2317^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223133 + ... + 3223136.

Almost surely, 2^12892538 is an apocalyptic number.

12892538 is a deficient number, since it is larger than the sum of its proper divisors (6446272).

12892538 is an equidigital number, since it uses as much as digits as its factorization.

12892538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446271.

The product of its digits is 34560, while the sum is 38.

The square root of 12892538 is about 3590.6180526478. The cubic root of 12892538 is about 234.4837800939.

The spelling of 12892538 in words is "twelve million, eight hundred ninety-two thousand, five hundred thirty-eight".