610429021 has 2 divisors, whose sum is σ = 610429022. Its totient is φ = 610429020.

The previous prime is 610429007. The next prime is 610429069. The reversal of 610429021 is 120924016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 574560900 + 35868121 = 23970^2 + 5989^2 .

It is a cyclic number.

It is not a de Polignac number, because 610429021 - 2⁹ = 610428509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610429121) 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, 305214510 + 305214511.

It is an arithmetic number, because the mean of its divisors is an integer number (305214511).

Almost surely, 2^610429021 is an apocalyptic number.

It is an amenable number.

610429021 is a deficient number, since it is larger than the sum of its proper divisors (1).

610429021 is an equidigital number, since it uses as much as digits as its factorization.

610429021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 610429021 is about 24706.8618201503. The cubic root of 610429021 is about 848.2913871397.

The spelling of 610429021 in words is "six hundred ten million, four hundred twenty-nine thousand, twenty-one".