466239721 has 6 divisors (see below), whose sum is σ = 481765866. Its totient is φ = 451198800.

The previous prime is 466239707. The next prime is 466239731. The reversal of 466239721 is 127932664.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 284394496 + 181845225 = 16864^2 + 13485^2 .

It is not a de Polignac number, because 466239721 - 2⁹ = 466239209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (466239731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241620 + ... + 243541.

It is an arithmetic number, because the mean of its divisors is an integer number (80294311).

Almost surely, 2^466239721 is an apocalyptic number.

It is an amenable number.

466239721 is a deficient number, since it is larger than the sum of its proper divisors (15526145).

466239721 is an equidigital number, since it uses as much as digits as its factorization.

466239721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485223 (or 485192 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 466239721 is about 21592.5848614750. The cubic root of 466239721 is about 775.4189734576.

The spelling of 466239721 in words is "four hundred sixty-six million, two hundred thirty-nine thousand, seven hundred twenty-one".