466171993 has 4 divisors (see below), whose sum is σ = 532768000. Its totient is φ = 399575988.

The previous prime is 466171961. The next prime is 466171999. The reversal of 466171993 is 399171664.

It is a happy 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 not a de Polignac number, because 466171993 - 2⁵ = 466171961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (466171999) 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, 33297993 + ... + 33298006.

It is an arithmetic number, because the mean of its divisors is an integer number (133192000).

Almost surely, 2^466171993 is an apocalyptic number.

It is an amenable number.

466171993 is a deficient number, since it is larger than the sum of its proper divisors (66596007).

466171993 is an equidigital number, since it uses as much as digits as its factorization.

466171993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66596006.

The product of its digits is 244944, while the sum is 46.

The square root of 466171993 is about 21591.0164883453. The cubic root of 466171993 is about 775.3814247338.

The spelling of 466171993 in words is "four hundred sixty-six million, one hundred seventy-one thousand, nine hundred ninety-three".