18710485 has 8 divisors (see below), whose sum is σ = 22497336. Its totient is φ = 14938560.

The previous prime is 18710479. The next prime is 18710507. The reversal of 18710485 is 58401781.

It can be written as a sum of positive squares in 4 ways, for example, as 2137444 + 16573041 = 1462^2 + 4071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18710485 - 2⁷ = 18710357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18710485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (2812167).

Almost surely, 2^18710485 is an apocalyptic number.

It is an amenable number.

18710485 is a deficient number, since it is larger than the sum of its proper divisors (3786851).

18710485 is an equidigital number, since it uses as much as digits as its factorization.

18710485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7463.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 18710485 is about 4325.5618132215. The cubic root of 18710485 is about 265.4778845795.

The spelling of 18710485 in words is "eighteen million, seven hundred ten thousand, four hundred eighty-five".