12623769 has 10 divisors (see below), whose sum is σ = 18857850. Its totient is φ = 8415792.

The previous prime is 12623761. The next prime is 12623797. The reversal of 12623769 is 96732621.

12623769 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 927369 = 3420^2 + 963^2 .

It is not a de Polignac number, because 12623769 - 2³ = 12623761 is a prime.

It is a super-2 number, since 2×12623769² = 318719087530722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12623761) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77844 + ... + 78005.

It is an arithmetic number, because the mean of its divisors is an integer number (1885785).

Almost surely, 2^12623769 is an apocalyptic number.

It is an amenable number.

12623769 is a deficient number, since it is larger than the sum of its proper divisors (6234081).

12623769 is an equidigital number, since it uses as much as digits as its factorization.

12623769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155861 (or 155852 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 12623769 is about 3552.9943709497. The cubic root of 12623769 is about 232.8429071195.

The spelling of 12623769 in words is "twelve million, six hundred twenty-three thousand, seven hundred sixty-nine".