620453243 has 2 divisors, whose sum is σ = 620453244. Its totient is φ = 620453242.

The previous prime is 620453237. The next prime is 620453257. The reversal of 620453243 is 342354026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620453243 - 2¹² = 620449147 is a prime.

It is not a weakly prime, because it can be changed into another prime (620453203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310226621 + 310226622.

It is an arithmetic number, because the mean of its divisors is an integer number (310226622).

Almost surely, 2^620453243 is an apocalyptic number.

620453243 is a deficient number, since it is larger than the sum of its proper divisors (1).

620453243 is an equidigital number, since it uses as much as digits as its factorization.

620453243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 620453243 is about 24908.8988716884. The cubic root of 620453243 is about 852.9096332891.

The spelling of 620453243 in words is "six hundred twenty million, four hundred fifty-three thousand, two hundred forty-three".