63871406 has 8 divisors (see below), whose sum is σ = 96114144. Its totient is φ = 31833360.

The previous prime is 63871393. The next prime is 63871411. The reversal of 63871406 is 60417836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50390 + ... + 51641.

It is an arithmetic number, because the mean of its divisors is an integer number (12014268).

Almost surely, 2^63871406 is an apocalyptic number.

63871406 is a deficient number, since it is larger than the sum of its proper divisors (32242738).

63871406 is a wasteful number, since it uses less digits than its factorization.

63871406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102346.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 63871406 is about 7991.9588337278. The cubic root of 63871406 is about 399.7319162012.

The spelling of 63871406 in words is "sixty-three million, eight hundred seventy-one thousand, four hundred six".