622465 has 4 divisors (see below), whose sum is σ = 746964. Its totient is φ = 497968.

The previous prime is 622423. The next prime is 622477. The reversal of 622465 is 564226.

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

It can be written as a sum of positive squares in 2 ways, for example, as 254016 + 368449 = 504^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 622465 - 2⁷ = 622337 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is an unprimeable number.

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, 62242 + ... + 62251.

It is an arithmetic number, because the mean of its divisors is an integer number (186741).

2⁶²²⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

622465 is a deficient number, since it is larger than the sum of its proper divisors (124499).

622465 is a wasteful number, since it uses less digits than its factorization.

622465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124498.

The product of its digits is 2880, while the sum is 25.

The square root of 622465 is about 788.9645112424. The cubic root of 622465 is about 85.3830463231.

The spelling of 622465 in words is "six hundred twenty-two thousand, four hundred sixty-five".