466751821 has 4 divisors (see below), whose sum is σ = 470314944. Its totient is φ = 463188700.

The previous prime is 466751801. The next prime is 466751837. The reversal of 466751821 is 128157664.

466751821 is nontrivially palindromic in base 12.

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 466751821 - 2⁹ = 466751309 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (466751801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781365 + ... + 1781626.

It is an arithmetic number, because the mean of its divisors is an integer number (117578736).

Almost surely, 2^466751821 is an apocalyptic number.

It is an amenable number.

466751821 is a deficient number, since it is larger than the sum of its proper divisors (3563123).

466751821 is a wasteful number, since it uses less digits than its factorization.

466751821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563122.

The product of its digits is 80640, while the sum is 40.

The square root of 466751821 is about 21604.4398446245. The cubic root of 466751821 is about 775.7027664961.

The spelling of 466751821 in words is "four hundred sixty-six million, seven hundred fifty-one thousand, eight hundred twenty-one".