622387543 has 4 divisors (see below), whose sum is σ = 624684448. Its totient is φ = 620090640.

The previous prime is 622387537. The next prime is 622387559. The reversal of 622387543 is 345783226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345783226 = 2 ⋅172891613.

It is a cyclic number.

It is not a de Polignac number, because 622387543 - 2⁵ = 622387511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 622387496 and 622387505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622387573) 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, 1148046 + ... + 1148587.

It is an arithmetic number, because the mean of its divisors is an integer number (156171112).

Almost surely, 2^622387543 is an apocalyptic number.

622387543 is a deficient number, since it is larger than the sum of its proper divisors (2296905).

622387543 is a wasteful number, since it uses less digits than its factorization.

622387543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296904.

The product of its digits is 241920, while the sum is 40.

The square root of 622387543 is about 24947.6961461374. The cubic root of 622387543 is about 853.7950460381.

The spelling of 622387543 in words is "six hundred twenty-two million, three hundred eighty-seven thousand, five hundred forty-three".