622847 has 4 divisors (see below), whose sum is σ = 628776. Its totient is φ = 616920.

The previous prime is 622813. The next prime is 622849. The reversal of 622847 is 748226.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622847 is a prime.

It is a d-powerful number, because it can be written as 6³ + 2⁵ + 8⁵ + 2¹⁹ + 4⁸ + 7 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622849) by changing a digit.

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, 2804 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (157194).

2⁶²²⁸⁴⁷ is an apocalyptic number.

622847 is a deficient number, since it is larger than the sum of its proper divisors (5929).

622847 is a wasteful number, since it uses less digits than its factorization.

622847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5928.

The product of its digits is 5376, while the sum is 29.

The square root of 622847 is about 789.2065635814. The cubic root of 622847 is about 85.4005089670.

The spelling of 622847 in words is "six hundred twenty-two thousand, eight hundred forty-seven".