622087 has 4 divisors (see below), whose sum is σ = 625536. Its totient is φ = 618640.

The previous prime is 622073. The next prime is 622091. The reversal of 622087 is 780226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780226 = 2 ⋅390113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622067) 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, 1438 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (156384).

2⁶²²⁰⁸⁷ is an apocalyptic number.

622087 is a deficient number, since it is larger than the sum of its proper divisors (3449).

622087 is a wasteful number, since it uses less digits than its factorization.

622087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 622087 is about 788.7249203620. The cubic root of 622087 is about 85.3657595001.

The spelling of 622087 in words is "six hundred twenty-two thousand, eighty-seven".