456282721 has 4 divisors (see below), whose sum is σ = 465990912. Its totient is φ = 446574532.

The previous prime is 456282713. The next prime is 456282733. The reversal of 456282721 is 127282654.

It is a happy number.

It is the 8721-st star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 456282721 - 2³ = 456282713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456282791) 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 in 3 ways as a sum of consecutive naturals, for example, 4854025 + ... + 4854118.

It is an arithmetic number, because the mean of its divisors is an integer number (116497728).

Almost surely, 2^456282721 is an apocalyptic number.

It is an amenable number.

456282721 is a deficient number, since it is larger than the sum of its proper divisors (9708191).

456282721 is an equidigital number, since it uses as much as digits as its factorization.

456282721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9708190.

The product of its digits is 53760, while the sum is 37.

The square root of 456282721 is about 21360.7752902370. The cubic root of 456282721 is about 769.8592653344.

The spelling of 456282721 in words is "four hundred fifty-six million, two hundred eighty-two thousand, seven hundred twenty-one".