620838499 has 2 divisors, whose sum is σ = 620838500. Its totient is φ = 620838498.

The previous prime is 620838481. The next prime is 620838527. The reversal of 620838499 is 994838026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620838499 - 2¹³ = 620830307 is a prime.

It is not a weakly prime, because it can be changed into another prime (620838469) 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, 310419249 + 310419250.

It is an arithmetic number, because the mean of its divisors is an integer number (310419250).

Almost surely, 2^620838499 is an apocalyptic number.

620838499 is a deficient number, since it is larger than the sum of its proper divisors (1).

620838499 is an equidigital number, since it uses as much as digits as its factorization.

620838499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 620838499 is about 24916.6309721038. The cubic root of 620838499 is about 853.0861282257.

The spelling of 620838499 in words is "six hundred twenty million, eight hundred thirty-eight thousand, four hundred ninety-nine".