620854337 has 2 divisors, whose sum is σ = 620854338. Its totient is φ = 620854336.

The previous prime is 620854309. The next prime is 620854379. The reversal of 620854337 is 733458026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549011761 + 71842576 = 23431^2 + 8476^2 .

It is a cyclic number.

It is not a de Polignac number, because 620854337 - 2¹⁶ = 620788801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620854337.

It is not a weakly prime, because it can be changed into another prime (620854237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310427168 + 310427169.

It is an arithmetic number, because the mean of its divisors is an integer number (310427169).

Almost surely, 2^620854337 is an apocalyptic number.

It is an amenable number.

620854337 is a deficient number, since it is larger than the sum of its proper divisors (1).

620854337 is an equidigital number, since it uses as much as digits as its factorization.

620854337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 620854337 is about 24916.9487899301. The cubic root of 620854337 is about 853.0933824275.

The spelling of 620854337 in words is "six hundred twenty million, eight hundred fifty-four thousand, three hundred thirty-seven".