71691796 has 12 divisors (see below), whose sum is σ = 136866240. Its totient is φ = 32587160.

The previous prime is 71691791. The next prime is 71691877. The reversal of 71691796 is 69719617.

It is a super-2 number, since 2×71691796² = 10279427227411232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71691791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814636 + ... + 814723.

It is an arithmetic number, because the mean of its divisors is an integer number (11405520).

Almost surely, 2^71691796 is an apocalyptic number.

It is an amenable number.

71691796 is a deficient number, since it is larger than the sum of its proper divisors (65174444).

71691796 is a wasteful number, since it uses less digits than its factorization.

71691796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629374 (or 1629372 counting only the distinct ones).

The product of its digits is 142884, while the sum is 46.

The square root of 71691796 is about 8467.1008025179. The cubic root of 71691796 is about 415.4223136023.

The spelling of 71691796 in words is "seventy-one million, six hundred ninety-one thousand, seven hundred ninety-six".