63872135 has 4 divisors (see below), whose sum is σ = 76646568. Its totient is φ = 51097704.

The previous prime is 63872131. The next prime is 63872177. The reversal of 63872135 is 53127836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63872135 - 2² = 63872131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63872095 and 63872104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63872131) 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, 6387209 + ... + 6387218.

It is an arithmetic number, because the mean of its divisors is an integer number (19161642).

Almost surely, 2^63872135 is an apocalyptic number.

63872135 is a deficient number, since it is larger than the sum of its proper divisors (12774433).

63872135 is a wasteful number, since it uses less digits than its factorization.

63872135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12774432.

The product of its digits is 30240, while the sum is 35.

The square root of 63872135 is about 7992.0044419407. The cubic root of 63872135 is about 399.7334369832.

The spelling of 63872135 in words is "sixty-three million, eight hundred seventy-two thousand, one hundred thirty-five".