71696751 has 12 divisors (see below), whose sum is σ = 111203352. Its totient is φ = 40969488.

The previous prime is 71696749. The next prime is 71696783. The reversal of 71696751 is 15769617.

It is not a de Polignac number, because 71696751 - 2¹ = 71696749 is a prime.

It is a hoax number, since the sum of its digits (42) 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 (71696711) 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 11 ways as a sum of consecutive naturals, for example, 243720 + ... + 244013.

It is an arithmetic number, because the mean of its divisors is an integer number (9266946).

Almost surely, 2^71696751 is an apocalyptic number.

71696751 is a deficient number, since it is larger than the sum of its proper divisors (39506601).

71696751 is a wasteful number, since it uses less digits than its factorization.

71696751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487750 (or 487743 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 71696751 is about 8467.3934005690. The cubic root of 71696751 is about 415.4318840611.

The spelling of 71696751 in words is "seventy-one million, six hundred ninety-six thousand, seven hundred fifty-one".