18713465 has 4 divisors (see below), whose sum is σ = 22456164. Its totient is φ = 14970768.

The previous prime is 18713459. The next prime is 18713489. The reversal of 18713465 is 56431781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5112121 + 13601344 = 2261^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 18713465 - 2⁴ = 18713449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871342 + ... + 1871351.

It is an arithmetic number, because the mean of its divisors is an integer number (5614041).

Almost surely, 2^18713465 is an apocalyptic number.

It is an amenable number.

18713465 is a deficient number, since it is larger than the sum of its proper divisors (3742699).

18713465 is an equidigital number, since it uses as much as digits as its factorization.

18713465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742698.

The product of its digits is 20160, while the sum is 35.

The square root of 18713465 is about 4325.9062634320. The cubic root of 18713465 is about 265.4919779626.

The spelling of 18713465 in words is "eighteen million, seven hundred thirteen thousand, four hundred sixty-five".