622213537 has 4 divisors (see below), whose sum is σ = 678778416. Its totient is φ = 565648660.

The previous prime is 622213519. The next prime is 622213591. The reversal of 622213537 is 735312226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 622213537 - 2¹⁹ = 621689249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 622213499 and 622213508.

It is not an unprimeable number, because it can be changed into a prime (622213517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28282423 + ... + 28282444.

It is an arithmetic number, because the mean of its divisors is an integer number (169694604).

Almost surely, 2^622213537 is an apocalyptic number.

It is an amenable number.

622213537 is a deficient number, since it is larger than the sum of its proper divisors (56564879).

622213537 is a wasteful number, since it uses less digits than its factorization.

622213537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56564878.

The product of its digits is 15120, while the sum is 31.

The square root of 622213537 is about 24944.2084861396. The cubic root of 622213537 is about 853.7154711227.

The spelling of 622213537 in words is "six hundred twenty-two million, two hundred thirteen thousand, five hundred thirty-seven".