620200247 has 2 divisors, whose sum is σ = 620200248. Its totient is φ = 620200246.

The previous prime is 620200201. The next prime is 620200277. The reversal of 620200247 is 742002026.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620200247 is a prime.

It is a super-2 number, since 2×620200247² = 769296692757722018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620200277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310100123 + 310100124.

It is an arithmetic number, because the mean of its divisors is an integer number (310100124).

Almost surely, 2^620200247 is an apocalyptic number.

620200247 is a deficient number, since it is larger than the sum of its proper divisors (1).

620200247 is an equidigital number, since it uses as much as digits as its factorization.

620200247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 620200247 is about 24903.8199278745. The cubic root of 620200247 is about 852.7936900579.

The spelling of 620200247 in words is "six hundred twenty million, two hundred thousand, two hundred forty-seven".