464560021 has 2 divisors, whose sum is σ = 464560022. Its totient is φ = 464560020.

The previous prime is 464559983. The next prime is 464560043. The reversal of 464560021 is 120065464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301716900 + 162843121 = 17370^2 + 12761^2 .

It is a cyclic number.

It is not a de Polignac number, because 464560021 - 2⁹ = 464559509 is a prime.

It is a super-2 number, since 2×464560021² = 431632026223040882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464560091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232280010 + 232280011.

It is an arithmetic number, because the mean of its divisors is an integer number (232280011).

Almost surely, 2^464560021 is an apocalyptic number.

It is an amenable number.

464560021 is a deficient number, since it is larger than the sum of its proper divisors (1).

464560021 is an equidigital number, since it uses as much as digits as its factorization.

464560021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 464560021 is about 21553.6544697181. The cubic root of 464560021 is about 774.4866644282.

The spelling of 464560021 in words is "four hundred sixty-four million, five hundred sixty thousand, twenty-one".