622881 has 12 divisors (see below), whose sum is σ = 1028352. Its totient is φ = 355896.

The previous prime is 622879. The next prime is 622889. The reversal of 622881 is 188226.

It is not a de Polignac number, because 622881 - 2¹ = 622879 is a prime.

It is a super-2 number, since 2×622881² = 775961480322, which contains 22 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622881.

It is not an unprimeable number, because it can be changed into a prime (622889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4881 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (85696).

2⁶²²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

622881 is a deficient number, since it is larger than the sum of its proper divisors (405471).

622881 is a wasteful number, since it uses less digits than its factorization.

622881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9900 (or 9897 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 622881 is about 789.2281039091. The cubic root of 622881 is about 85.4020628877.

The spelling of 622881 in words is "six hundred twenty-two thousand, eight hundred eighty-one".