622623611 has 4 divisors (see below), whose sum is σ = 622969224. Its totient is φ = 622278000.

The previous prime is 622623601. The next prime is 622623629. The reversal of 622623611 is 116326226.

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

It is a cyclic number.

It is not a de Polignac number, because 622623611 - 2¹⁰ = 622622587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622623601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170090 + ... + 173711.

It is an arithmetic number, because the mean of its divisors is an integer number (155742306).

Almost surely, 2^622623611 is an apocalyptic number.

622623611 is a deficient number, since it is larger than the sum of its proper divisors (345613).

622623611 is a wasteful number, since it uses less digits than its factorization.

622623611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345612.

The product of its digits is 5184, while the sum is 29.

The square root of 622623611 is about 24952.4269561099. The cubic root of 622623611 is about 853.9029789029.

Adding to 622623611 its reverse (116326226), we get a palindrome (738949837).

The spelling of 622623611 in words is "six hundred twenty-two million, six hundred twenty-three thousand, six hundred eleven".