12623505 has 16 divisors (see below), whose sum is σ = 21261120. Its totient is φ = 6378048.

The previous prime is 12623491. The next prime is 12623519. The reversal of 12623505 is 50532621.

It is an interprime number because it is at equal distance from previous prime (12623491) and next prime (12623519).

It is not a de Polignac number, because 12623505 - 2⁵ = 12623473 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21862 + ... + 22431.

It is an arithmetic number, because the mean of its divisors is an integer number (1328820).

Almost surely, 2^12623505 is an apocalyptic number.

12623505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12623505 is a deficient number, since it is larger than the sum of its proper divisors (8637615).

12623505 is a wasteful number, since it uses less digits than its factorization.

12623505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44320.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 12623505 is about 3552.9572189938. The cubic root of 12623505 is about 232.8412839657.

The spelling of 12623505 in words is "twelve million, six hundred twenty-three thousand, five hundred five".