12345677 has 4 divisors (see below), whose sum is σ = 12771420. Its totient is φ = 11919936.

The previous prime is 12345653. The next prime is 12345701. The reversal of 12345677 is 77654321.

12345677 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.

It is an interprime number because it is at equal distance from previous prime (12345653) and next prime (12345701).

It can be written as a sum of positive squares in 2 ways, for example, as 7761796 + 4583881 = 2786^2 + 2141^2 .

It is a cyclic number.

It is not a de Polignac number, because 12345677 - 2¹⁶ = 12280141 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345637) 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, 212828 + ... + 212885.

It is an arithmetic number, because the mean of its divisors is an integer number (3192855).

Almost surely, 2^12345677 is an apocalyptic number.

It is an amenable number.

12345677 is a deficient number, since it is larger than the sum of its proper divisors (425743).

12345677 is an equidigital number, since it uses as much as digits as its factorization.

12345677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425742.

The product of its digits is 35280, while the sum is 35.

The square root of 12345677 is about 3513.6415582697. The cubic root of 12345677 is about 231.1204122260.

Adding to 12345677 its reverse (77654321), we get a palindrome (89999998).

The spelling of 12345677 in words is "twelve million, three hundred forty-five thousand, six hundred seventy-seven".