71538422 has 8 divisors (see below), whose sum is σ = 107343576. Its totient is φ = 35757232.

The previous prime is 71538419. The next prime is 71538433. The reversal of 71538422 is 22483517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8153 + ... + 14475.

It is an arithmetic number, because the mean of its divisors is an integer number (13417947).

Almost surely, 2^71538422 is an apocalyptic number.

71538422 is a deficient number, since it is larger than the sum of its proper divisors (35805154).

71538422 is a wasteful number, since it uses less digits than its factorization.

71538422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982.

The product of its digits is 13440, while the sum is 32.

The square root of 71538422 is about 8458.0388979952. The cubic root of 71538422 is about 415.1258572162.

The spelling of 71538422 in words is "seventy-one million, five hundred thirty-eight thousand, four hundred twenty-two".