13400617 has 4 divisors (see below), whose sum is σ = 13407940. Its totient is φ = 13393296.

The previous prime is 13400591. The next prime is 13400633. The reversal of 13400617 is 71600431.

13400617 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71600431 = 7 ⋅10228633.

It can be written as a sum of positive squares in 2 ways, for example, as 1038361 + 12362256 = 1019^2 + 3516^2 .

It is a cyclic number.

It is not a de Polignac number, because 13400617 - 2¹¹ = 13398569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13400657) 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, 1759 + ... + 5467.

It is an arithmetic number, because the mean of its divisors is an integer number (3351985).

Almost surely, 2^13400617 is an apocalyptic number.

It is an amenable number.

13400617 is a deficient number, since it is larger than the sum of its proper divisors (7323).

13400617 is an equidigital number, since it uses as much as digits as its factorization.

13400617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 13400617 is about 3660.6853183523. The cubic root of 13400617 is about 237.5244192805.

The spelling of 13400617 in words is "thirteen million, four hundred thousand, six hundred seventeen".