662455 has 4 divisors (see below), whose sum is σ = 794952. Its totient is φ = 529960.

The previous prime is 662449. The next prime is 662477. The reversal of 662455 is 554266.

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

It is not a de Polignac number, because 662455 - 2⁷ = 662327 is a prime.

It is a Duffinian number.

662455 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66241 + ... + 66250.

It is an arithmetic number, because the mean of its divisors is an integer number (198738).

2⁶⁶²⁴⁵⁵ is an apocalyptic number.

662455 is a deficient number, since it is larger than the sum of its proper divisors (132497).

662455 is a wasteful number, since it uses less digits than its factorization.

662455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132496.

The product of its digits is 7200, while the sum is 28.

The square root of 662455 is about 813.9133860553. The cubic root of 662455 is about 87.1736962298.

The spelling of 662455 in words is "six hundred sixty-two thousand, four hundred fifty-five".