71349738 has 8 divisors (see below), whose sum is σ = 142699488. Its totient is φ = 23783244.

The previous prime is 71349721. The next prime is 71349757. The reversal of 71349738 is 83794317.

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

71349738 is an admirable number.

It is a super-2 number, since 2×71349738² = 10181570225337288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71349738.

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, 5945806 + ... + 5945817.

It is an arithmetic number, because the mean of its divisors is an integer number (17837436).

Almost surely, 2^71349738 is an apocalyptic number.

71349738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71349738 is a wasteful number, since it uses less digits than its factorization.

71349738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11891628.

The product of its digits is 127008, while the sum is 42.

The square root of 71349738 is about 8446.8774112094. The cubic root of 71349738 is about 414.7605683282.

The spelling of 71349738 in words is "seventy-one million, three hundred forty-nine thousand, seven hundred thirty-eight".