63271893 has 4 divisors (see below), whose sum is σ = 84362528. Its totient is φ = 42181260.

The previous prime is 63271889. The next prime is 63271903. The reversal of 63271893 is 39817236.

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 63271893 - 2² = 63271889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63271393) 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, 10545313 + ... + 10545318.

It is an arithmetic number, because the mean of its divisors is an integer number (21090632).

Almost surely, 2^63271893 is an apocalyptic number.

It is an amenable number.

63271893 is a deficient number, since it is larger than the sum of its proper divisors (21090635).

63271893 is a wasteful number, since it uses less digits than its factorization.

63271893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21090634.

The product of its digits is 54432, while the sum is 39.

The square root of 63271893 is about 7954.3631423264. The cubic root of 63271893 is about 398.4773213964.

The spelling of 63271893 in words is "sixty-three million, two hundred seventy-one thousand, eight hundred ninety-three".