71964063 has 12 divisors (see below), whose sum is σ = 104242320. Its totient is φ = 47840256.

The previous prime is 71964059. The next prime is 71964073. The reversal of 71964063 is 36046917.

71964063 is a `hidden beast` number, since 7 + 1 + 9 + 640 + 6 + 3 = 666.

It is not a de Polignac number, because 71964063 - 2² = 71964059 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71964073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7906 + ... + 14367.

It is an arithmetic number, because the mean of its divisors is an integer number (8686860).

Almost surely, 2^71964063 is an apocalyptic number.

71964063 is a deficient number, since it is larger than the sum of its proper divisors (32278257).

71964063 is a wasteful number, since it uses less digits than its factorization.

71964063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22638 (or 22635 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 71964063 is about 8483.1635019019. The cubic root of 71964063 is about 415.9475383024.

The spelling of 71964063 in words is "seventy-one million, nine hundred sixty-four thousand, sixty-three".