622791 has 12 divisors (see below), whose sum is σ = 968968. Its totient is φ = 383184.

The previous prime is 622781. The next prime is 622793. The reversal of 622791 is 197226.

It is not a de Polignac number, because 622791 - 2⁷ = 622663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622793) 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, 2545 + ... + 2778.

2⁶²²⁷⁹¹ is an apocalyptic number.

622791 is a deficient number, since it is larger than the sum of its proper divisors (346177).

622791 is a wasteful number, since it uses less digits than its factorization.

622791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5339 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 622791 is about 789.1710841129. The cubic root of 622791 is about 85.3979494450.

The spelling of 622791 in words is "six hundred twenty-two thousand, seven hundred ninety-one".