620693 has 2 divisors, whose sum is σ = 620694. Its totient is φ = 620692.

The previous prime is 620689. The next prime is 620717. The reversal of 620693 is 396026.

620693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 552049 + 68644 = 743^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 620693 - 2² = 620689 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310346 + 310347.

It is an arithmetic number, because the mean of its divisors is an integer number (310347).

2⁶²⁰⁶⁹³ is an apocalyptic number.

It is an amenable number.

620693 is a deficient number, since it is larger than the sum of its proper divisors (1).

620693 is an equidigital number, since it uses as much as digits as its factorization.

620693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 620693 is about 787.8407199428. The cubic root of 620693 is about 85.3019480256.

The spelling of 620693 in words is "six hundred twenty thousand, six hundred ninety-three".