620507 has 2 divisors, whose sum is σ = 620508. Its totient is φ = 620506.

The previous prime is 620491. The next prime is 620519. The reversal of 620507 is 705026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620507 - 2⁴ = 620491 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620507.

It is not a weakly prime, because it can be changed into another prime (620567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310253 + 310254.

It is an arithmetic number, because the mean of its divisors is an integer number (310254).

2⁶²⁰⁵⁰⁷ is an apocalyptic number.

620507 is a deficient number, since it is larger than the sum of its proper divisors (1).

620507 is an equidigital number, since it uses as much as digits as its factorization.

620507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 620507 is about 787.7226669330. The cubic root of 620507 is about 85.2934265035.

The spelling of 620507 in words is "six hundred twenty thousand, five hundred seven".