481228729 has 2 divisors, whose sum is σ = 481228730. Its totient is φ = 481228728.

The previous prime is 481228687. The next prime is 481228739. The reversal of 481228729 is 927822184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409860025 + 71368704 = 20245^2 + 8448^2 .

It is a cyclic number.

It is not a de Polignac number, because 481228729 - 2¹⁵ = 481195961 is a prime.

It is a super-2 number, since 2×481228729² = 463162179229910882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (481228739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240614364 + 240614365.

It is an arithmetic number, because the mean of its divisors is an integer number (240614365).

Almost surely, 2^481228729 is an apocalyptic number.

It is an amenable number.

481228729 is a deficient number, since it is larger than the sum of its proper divisors (1).

481228729 is an equidigital number, since it uses as much as digits as its factorization.

481228729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 43.

The square root of 481228729 is about 21936.9261520387. The cubic root of 481228729 is about 783.6410577709.

The spelling of 481228729 in words is "four hundred eighty-one million, two hundred twenty-eight thousand, seven hundred twenty-nine".