620755363 has 2 divisors, whose sum is σ = 620755364. Its totient is φ = 620755362.

The previous prime is 620755321. The next prime is 620755381. The reversal of 620755363 is 363557026.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620755363 - 2⁹ = 620754851 is a prime.

It is not a weakly prime, because it can be changed into another prime (620735363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310377681 + 310377682.

It is an arithmetic number, because the mean of its divisors is an integer number (310377682).

Almost surely, 2^620755363 is an apocalyptic number.

620755363 is a deficient number, since it is larger than the sum of its proper divisors (1).

620755363 is an equidigital number, since it uses as much as digits as its factorization.

620755363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 37.

The square root of 620755363 is about 24914.9626329240. The cubic root of 620755363 is about 853.0480478261.

The spelling of 620755363 in words is "six hundred twenty million, seven hundred fifty-five thousand, three hundred sixty-three".