71629706 has 16 divisors (see below), whose sum is σ = 113044680. Its totient is φ = 33995520.

The previous prime is 71629697. The next prime is 71629709. The reversal of 71629706 is 60792617.

It can be written as a sum of positive squares in 4 ways, for example, as 46036225 + 25593481 = 6785^2 + 5059^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71629706.

It is not an unprimeable number, because it can be changed into a prime (71629709) 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 7 ways as a sum of consecutive naturals, for example, 8771 + ... + 14838.

Almost surely, 2^71629706 is an apocalyptic number.

71629706 is a deficient number, since it is larger than the sum of its proper divisors (41414974).

71629706 is a wasteful number, since it uses less digits than its factorization.

71629706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23689.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 71629706 is about 8463.4334640263. The cubic root of 71629706 is about 415.3023509157.

The spelling of 71629706 in words is "seventy-one million, six hundred twenty-nine thousand, seven hundred six".