71689692 has 12 divisors (see below), whose sum is σ = 167275976. Its totient is φ = 23896560.

The previous prime is 71689691. The next prime is 71689721. The reversal of 71689692 is 29698617.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71689691) 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, 2987059 + ... + 2987082.

Almost surely, 2^71689692 is an apocalyptic number.

It is an amenable number.

71689692 is an abundant number, since it is smaller than the sum of its proper divisors (95586284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71689692 is a wasteful number, since it uses less digits than its factorization.

71689692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5974148 (or 5974146 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 71689692 is about 8466.9765560086. The cubic root of 71689692 is about 415.4182496454.

The spelling of 71689692 in words is "seventy-one million, six hundred eighty-nine thousand, six hundred ninety-two".