470436721 has 2 divisors, whose sum is σ = 470436722. Its totient is φ = 470436720.

The previous prime is 470436679. The next prime is 470436737. The reversal of 470436721 is 127634074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468246321 + 2190400 = 21639^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 470436721 - 2¹¹ = 470434673 is a prime.

It is not a weakly prime, because it can be changed into another prime (470236721) 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, 235218360 + 235218361.

It is an arithmetic number, because the mean of its divisors is an integer number (235218361).

Almost surely, 2^470436721 is an apocalyptic number.

It is an amenable number.

470436721 is a deficient number, since it is larger than the sum of its proper divisors (1).

470436721 is an equidigital number, since it uses as much as digits as its factorization.

470436721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 470436721 is about 21689.5532687974. The cubic root of 470436721 is about 777.7387505807.

The spelling of 470436721 in words is "four hundred seventy million, four hundred thirty-six thousand, seven hundred twenty-one".