655279 has 4 divisors (see below), whose sum is σ = 658240. Its totient is φ = 652320.

The previous prime is 655273. The next prime is 655283. The reversal of 655279 is 972556.

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 655279 - 2⁹ = 654767 is a prime.

It is a Duffinian number.

655279 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655273) 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, 1119 + ... + 1600.

It is an arithmetic number, because the mean of its divisors is an integer number (164560).

2⁶⁵⁵²⁷⁹ is an apocalyptic number.

655279 is a deficient number, since it is larger than the sum of its proper divisors (2961).

655279 is a wasteful number, since it uses less digits than its factorization.

655279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960.

The product of its digits is 18900, while the sum is 34.

The square root of 655279 is about 809.4930512364. The cubic root of 655279 is about 86.8577850057.

It can be divided in two parts, 65527 and 9, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 655279 in words is "six hundred fifty-five thousand, two hundred seventy-nine".