71744534 has 4 divisors (see below), whose sum is σ = 107616804. Its totient is φ = 35872266.

The previous prime is 71744507. The next prime is 71744557. The reversal of 71744534 is 43544717.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 3 and base 9.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 71744494 and 71744503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17936132 + ... + 17936135.

It is an arithmetic number, because the mean of its divisors is an integer number (26904201).

Almost surely, 2^71744534 is an apocalyptic number.

71744534 is a deficient number, since it is larger than the sum of its proper divisors (35872270).

71744534 is a wasteful number, since it uses less digits than its factorization.

71744534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35872269.

The product of its digits is 47040, while the sum is 35.

The square root of 71744534 is about 8470.2145191252. The cubic root of 71744534 is about 415.5241531119.

The spelling of 71744534 in words is "seventy-one million, seven hundred forty-four thousand, five hundred thirty-four".