618697 has 4 divisors (see below), whose sum is σ = 651280. Its totient is φ = 586116.

The previous prime is 618679. The next prime is 618703. The reversal of 618697 is 796816.

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 a de Polignac number, because none of the positive numbers 2^k-618697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618637) 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, 16263 + ... + 16300.

It is an arithmetic number, because the mean of its divisors is an integer number (162820).

2⁶¹⁸⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

618697 is a deficient number, since it is larger than the sum of its proper divisors (32583).

618697 is a wasteful number, since it uses less digits than its factorization.

618697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32582.

The product of its digits is 18144, while the sum is 37.

The square root of 618697 is about 786.5729463947. The cubic root of 618697 is about 85.2104129602.

The spelling of 618697 in words is "six hundred eighteen thousand, six hundred ninety-seven".