12621077 has 12 divisors (see below), whose sum is σ = 14747040. Its totient is φ = 10769976.

The previous prime is 12621067. The next prime is 12621109. The reversal of 12621077 is 77012621.

It is a de Polignac number, because none of the positive numbers 2^k-12621077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12621017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14624 + ... + 15462.

It is an arithmetic number, because the mean of its divisors is an integer number (1228920).

Almost surely, 2^12621077 is an apocalyptic number.

It is an amenable number.

12621077 is a deficient number, since it is larger than the sum of its proper divisors (2125963).

12621077 is an equidigital number, since it uses as much as digits as its factorization.

12621077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 12621077 is about 3552.6155153633. The cubic root of 12621077 is about 232.8263548081.

Adding to 12621077 its reverse (77012621), we get a palindrome (89633698).

The spelling of 12621077 in words is "twelve million, six hundred twenty-one thousand, seventy-seven".