622867 has 8 divisors (see below), whose sum is σ = 719712. Its totient is φ = 528000.

The previous prime is 622861. The next prime is 622879. The reversal of 622867 is 768226.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 622867 - 2¹⁵ = 590099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267 + ... + 1147.

It is an arithmetic number, because the mean of its divisors is an integer number (89964).

2⁶²²⁸⁶⁷ is an apocalyptic number.

622867 is a deficient number, since it is larger than the sum of its proper divisors (96845).

622867 is a wasteful number, since it uses less digits than its factorization.

622867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its digits is 8064, while the sum is 31.

The square root of 622867 is about 789.2192344336. The cubic root of 622867 is about 85.4014230448.

The spelling of 622867 in words is "six hundred twenty-two thousand, eight hundred sixty-seven".