618607 has 4 divisors (see below), whose sum is σ = 674856. Its totient is φ = 562360.

The previous prime is 618593. The next prime is 618619. The reversal of 618607 is 706816.

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

It is a cyclic number.

It is not a de Polignac number, because 618607 - 2¹⁵ = 585839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28108 + ... + 28129.

It is an arithmetic number, because the mean of its divisors is an integer number (168714).

2⁶¹⁸⁶⁰⁷ is an apocalyptic number.

618607 is a deficient number, since it is larger than the sum of its proper divisors (56249).

618607 is a wasteful number, since it uses less digits than its factorization.

618607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56248.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 618607 is about 786.5157341084. The cubic root of 618607 is about 85.2062809920.

Subtracting 618607 from its reverse (706816), we obtain a square (88209 = 297²).

It can be divided in two parts, 618 and 607, that added together give a triangular number (1225 = T₄₉).

The spelling of 618607 in words is "six hundred eighteen thousand, six hundred seven".