71964132 has 24 divisors (see below), whose sum is σ = 168099456. Its totient is φ = 23961888.

The previous prime is 71964131. The next prime is 71964161. The reversal of 71964132 is 23146917.

It is a junction number, because it is equal to n+sod(n) for n = 71964093 and 71964102.

It is not an unprimeable number, because it can be changed into a prime (71964131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10518 + ... + 15954.

It is an arithmetic number, because the mean of its divisors is an integer number (7004144).

Almost surely, 2^71964132 is an apocalyptic number.

It is an amenable number.

71964132 is an abundant number, since it is smaller than the sum of its proper divisors (96135324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71964132 is a wasteful number, since it uses less digits than its factorization.

71964132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547 (or 6545 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 71964132 is about 8483.1675687800. The cubic root of 71964132 is about 415.9476712408.

The spelling of 71964132 in words is "seventy-one million, nine hundred sixty-four thousand, one hundred thirty-two".