620160397 has 2 divisors, whose sum is σ = 620160398. Its totient is φ = 620160396.

The previous prime is 620160377. The next prime is 620160407. The reversal of 620160397 is 793061026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608559561 + 11600836 = 24669^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 620160397 - 2¹¹ = 620158349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620160377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310080198 + 310080199.

It is an arithmetic number, because the mean of its divisors is an integer number (310080199).

Almost surely, 2^620160397 is an apocalyptic number.

It is an amenable number.

620160397 is a deficient number, since it is larger than the sum of its proper divisors (1).

620160397 is an equidigital number, since it uses as much as digits as its factorization.

620160397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 620160397 is about 24903.0198369595. The cubic root of 620160397 is about 852.7754246903.

The spelling of 620160397 in words is "six hundred twenty million, one hundred sixty thousand, three hundred ninety-seven".