71706963 has 6 divisors (see below), whose sum is σ = 95628844. Its totient is φ = 47794864.

The previous prime is 71706953. The next prime is 71706967. The reversal of 71706963 is 36960717.

It is not a de Polignac number, because 71706963 - 2⁸ = 71706707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71706967) 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 5 ways as a sum of consecutive naturals, for example, 12223 + ... + 17111.

Almost surely, 2^71706963 is an apocalyptic number.

71706963 is a deficient number, since it is larger than the sum of its proper divisors (23921881).

71706963 is an frugal number, since it uses more digits than its factorization.

71706963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781 (or 4892 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 71706963 is about 8467.9963982042. The cubic root of 71706963 is about 415.4516068934.

Multiplying 71706963 by its product of nonzero digits (47628), we get a square (3415259233764 = 1848042²).

The spelling of 71706963 in words is "seventy-one million, seven hundred six thousand, nine hundred sixty-three".