620567 has 2 divisors, whose sum is σ = 620568. Its totient is φ = 620566.

The previous prime is 620561. The next prime is 620569. The reversal of 620567 is 765026.

620567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620567 - 2⁸ = 620311 is a prime.

Together with 620569, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310283 + 310284.

It is an arithmetic number, because the mean of its divisors is an integer number (310284).

2⁶²⁰⁵⁶⁷ is an apocalyptic number.

620567 is a deficient number, since it is larger than the sum of its proper divisors (1).

620567 is an equidigital number, since it uses as much as digits as its factorization.

620567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 620567 is about 787.7607504820. The cubic root of 620567 is about 85.2961755676.

The spelling of 620567 in words is "six hundred twenty thousand, five hundred sixty-seven".