620252419 has 2 divisors, whose sum is σ = 620252420. Its totient is φ = 620252418.

The previous prime is 620252407. The next prime is 620252441. The reversal of 620252419 is 914252026.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620252419 is a prime.

It is a super-2 number, since 2×620252419² = 769426126550703122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (620252449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310126209 + 310126210.

It is an arithmetic number, because the mean of its divisors is an integer number (310126210).

Almost surely, 2^620252419 is an apocalyptic number.

620252419 is a deficient number, since it is larger than the sum of its proper divisors (1).

620252419 is an equidigital number, since it uses as much as digits as its factorization.

620252419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 620252419 is about 24904.8673756758. The cubic root of 620252419 is about 852.8176020686.

The spelling of 620252419 in words is "six hundred twenty million, two hundred fifty-two thousand, four hundred nineteen".