71964329 has 2 divisors, whose sum is σ = 71964330. Its totient is φ = 71964328.

The previous prime is 71964317. The next prime is 71964359. The reversal of 71964329 is 92346917.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52954729 + 19009600 = 7277^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 71964329 - 2⁴ = 71964313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71964359) 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 as a sum of consecutive naturals, namely, 35982164 + 35982165.

It is an arithmetic number, because the mean of its divisors is an integer number (35982165).

Almost surely, 2^71964329 is an apocalyptic number.

It is an amenable number.

71964329 is a deficient number, since it is larger than the sum of its proper divisors (1).

71964329 is an equidigital number, since it uses as much as digits as its factorization.

71964329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 71964329 is about 8483.1791800009. The cubic root of 71964329 is about 415.9480507892.

The spelling of 71964329 in words is "seventy-one million, nine hundred sixty-four thousand, three hundred twenty-nine".