18675697 has 4 divisors (see below), whose sum is σ = 18708976. Its totient is φ = 18642420.

The previous prime is 18675691. The next prime is 18675743. The reversal of 18675697 is 79657681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18675697 - 2²³ = 10287089 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 18675697.

It is not an unprimeable number, because it can be changed into a prime (18675691) 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, 15783 + ... + 16924.

It is an arithmetic number, because the mean of its divisors is an integer number (4677244).

Almost surely, 2^18675697 is an apocalyptic number.

It is an amenable number.

18675697 is a deficient number, since it is larger than the sum of its proper divisors (33279).

18675697 is an equidigital number, since it uses as much as digits as its factorization.

18675697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33278.

The product of its digits is 635040, while the sum is 49.

The square root of 18675697 is about 4321.5387305912. The cubic root of 18675697 is about 265.3132500743.

The spelling of 18675697 in words is "eighteen million, six hundred seventy-five thousand, six hundred ninety-seven".