71830741 has 4 divisors (see below), whose sum is σ = 73186092. Its totient is φ = 70475392.

The previous prime is 71830723. The next prime is 71830757. The reversal of 71830741 is 14703817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14703817 = 2939 ⋅5003.

It can be written as a sum of positive squares in 2 ways, for example, as 53802225 + 18028516 = 7335^2 + 4246^2 .

It is a cyclic number.

It is not a de Polignac number, because 71830741 - 2⁹ = 71830229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71830721) 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, 677596 + ... + 677701.

It is an arithmetic number, because the mean of its divisors is an integer number (18296523).

Almost surely, 2^71830741 is an apocalyptic number.

It is an amenable number.

71830741 is a deficient number, since it is larger than the sum of its proper divisors (1355351).

71830741 is a wasteful number, since it uses less digits than its factorization.

71830741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355350.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 71830741 is about 8475.3018235341. The cubic root of 71830741 is about 415.6905153925.

The spelling of 71830741 in words is "seventy-one million, eight hundred thirty thousand, seven hundred forty-one".