620761259 has 2 divisors, whose sum is σ = 620761260. Its totient is φ = 620761258.

The previous prime is 620761199. The next prime is 620761277. The reversal of 620761259 is 952167026.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620761259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (620761159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310380629 + 310380630.

It is an arithmetic number, because the mean of its divisors is an integer number (310380630).

Almost surely, 2^620761259 is an apocalyptic number.

620761259 is a deficient number, since it is larger than the sum of its proper divisors (1).

620761259 is an equidigital number, since it uses as much as digits as its factorization.

620761259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 620761259 is about 24915.0809551163. The cubic root of 620761259 is about 853.0507485977.

The spelling of 620761259 in words is "six hundred twenty million, seven hundred sixty-one thousand, two hundred fifty-nine".