620461 has 2 divisors, whose sum is σ = 620462. Its totient is φ = 620460.

The previous prime is 620441. The next prime is 620467. The reversal of 620461 is 164026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455625 + 164836 = 675^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 620461 - 2⁵ = 620429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620467) 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, 310230 + 310231.

It is an arithmetic number, because the mean of its divisors is an integer number (310231).

2⁶²⁰⁴⁶¹ is an apocalyptic number.

It is an amenable number.

620461 is a deficient number, since it is larger than the sum of its proper divisors (1).

620461 is an equidigital number, since it uses as much as digits as its factorization.

620461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 620461 is about 787.6934682984. The cubic root of 620461 is about 85.2913187676.

Adding to 620461 its reverse (164026), we get a palindrome (784487).

It can be divided in two parts, 620 and 461, that added together give a triangular number (1081 = T₄₆).

The spelling of 620461 in words is "six hundred twenty thousand, four hundred sixty-one".