12617611 has 4 divisors (see below), whose sum is σ = 12633192. Its totient is φ = 12602032.

The previous prime is 12617609. The next prime is 12617659. The reversal of 12617611 is 11671621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11671621 = 13 ⋅897817.

It is a cyclic number.

It is not a de Polignac number, because 12617611 - 2¹ = 12617609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12614611) 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, 6505 + ... + 8218.

It is an arithmetic number, because the mean of its divisors is an integer number (3158298).

Almost surely, 2^12617611 is an apocalyptic number.

12617611 is a deficient number, since it is larger than the sum of its proper divisors (15581).

12617611 is an equidigital number, since it uses as much as digits as its factorization.

12617611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15580.

The product of its digits is 504, while the sum is 25.

The square root of 12617611 is about 3552.1276722550. The cubic root of 12617611 is about 232.8050399333.

The spelling of 12617611 in words is "twelve million, six hundred seventeen thousand, six hundred eleven".