12642077 has 4 divisors (see below), whose sum is σ = 14448096. Its totient is φ = 10836060.

The previous prime is 12642061. The next prime is 12642083. The reversal of 12642077 is 77024621.

12642077 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77024621 = 251 ⋅306871.

It is a cyclic number.

It is not a de Polignac number, because 12642077 - 2⁴ = 12642061 is a prime.

It is a super-2 number, since 2×12642077² = 319644221747858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12644077) 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, 902999 + ... + 903012.

It is an arithmetic number, because the mean of its divisors is an integer number (3612024).

Almost surely, 2^12642077 is an apocalyptic number.

It is an amenable number.

12642077 is a deficient number, since it is larger than the sum of its proper divisors (1806019).

12642077 is an equidigital number, since it uses as much as digits as its factorization.

12642077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806018.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 12642077 is about 3555.5698558740. The cubic root of 12642077 is about 232.9554152199.

Adding to 12642077 its reverse (77024621), we get a palindrome (89666698).

The spelling of 12642077 in words is "twelve million, six hundred forty-two thousand, seventy-seven".