618263 has 4 divisors (see below), whose sum is σ = 645168. Its totient is φ = 591360.

The previous prime is 618257. The next prime is 618269. The reversal of 618263 is 362816.

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

It is an interprime number because it is at equal distance from previous prime (618257) and next prime (618269).

It is a cyclic number.

It is not a de Polignac number, because 618263 - 2⁶ = 618199 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 (618269) 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, 13418 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (161292).

2⁶¹⁸²⁶³ is an apocalyptic number.

618263 is a deficient number, since it is larger than the sum of its proper divisors (26905).

618263 is a wasteful number, since it uses less digits than its factorization.

618263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26904.

The product of its digits is 1728, while the sum is 26.

The square root of 618263 is about 786.2970176721. The cubic root of 618263 is about 85.1904839967.

The spelling of 618263 in words is "six hundred eighteen thousand, two hundred sixty-three".