71439696 has 60 divisors (see below), whose sum is σ = 210462720. Its totient is φ = 22559040.

The previous prime is 71439653. The next prime is 71439701. The reversal of 71439696 is 69693417.

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, 10320 + ... + 15791.

It is an arithmetic number, because the mean of its divisors is an integer number (3507712).

Almost surely, 2^71439696 is an apocalyptic number.

71439696 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71439696 is an abundant number, since it is smaller than the sum of its proper divisors (139023024).

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

71439696 is a wasteful number, since it uses less digits than its factorization.

71439696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26144 (or 26135 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 71439696 is about 8452.2006601831. The cubic root of 71439696 is about 414.9348056489.

The spelling of 71439696 in words is "seventy-one million, four hundred thirty-nine thousand, six hundred ninety-six".