71683741 has 4 divisors (see below), whose sum is σ = 72341500. Its totient is φ = 71025984.

The previous prime is 71683721. The next prime is 71683757. The reversal of 71683741 is 14738617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14738617 = 37 ⋅398341.

It can be written as a sum of positive squares in 2 ways, for example, as 61308900 + 10374841 = 7830^2 + 3221^2 .

It is a cyclic number.

It is not a de Polignac number, because 71683741 - 2²¹ = 69586589 is a prime.

It is a super-3 number, since 3×71683741³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71683741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71683721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328716 + ... + 328933.

It is an arithmetic number, because the mean of its divisors is an integer number (18085375).

Almost surely, 2^71683741 is an apocalyptic number.

It is an amenable number.

71683741 is a deficient number, since it is larger than the sum of its proper divisors (657759).

71683741 is a wasteful number, since it uses less digits than its factorization.

71683741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657758.

The product of its digits is 28224, while the sum is 37.

The square root of 71683741 is about 8466.6251245700. The cubic root of 71683741 is about 415.4067546297.

The spelling of 71683741 in words is "seventy-one million, six hundred eighty-three thousand, seven hundred forty-one".