71989326 has 24 divisors (see below), whose sum is σ = 157588704. Its totient is φ = 23748480.

The previous prime is 71989283. The next prime is 71989331. The reversal of 71989326 is 62398917.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18870 + ... + 22361.

It is an arithmetic number, because the mean of its divisors is an integer number (6566196).

Almost surely, 2^71989326 is an apocalyptic number.

71989326 is an abundant number, since it is smaller than the sum of its proper divisors (85599378).

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

71989326 is a wasteful number, since it uses less digits than its factorization.

71989326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41336 (or 41333 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 71989326 is about 8484.6523794437. The cubic root of 71989326 is about 415.9962054326.

The spelling of 71989326 in words is "seventy-one million, nine hundred eighty-nine thousand, three hundred twenty-six".