71830743 has 8 divisors (see below), whose sum is σ = 96850800. Its totient is φ = 47348928.

The previous prime is 71830723. The next prime is 71830757. The reversal of 71830743 is 34703817.

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

It is not a de Polignac number, because 71830743 - 2¹² = 71826647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71830723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134248 + ... + 134781.

It is an arithmetic number, because the mean of its divisors is an integer number (12106350).

Almost surely, 2^71830743 is an apocalyptic number.

71830743 is a deficient number, since it is larger than the sum of its proper divisors (25020057).

71830743 is a wasteful number, since it uses less digits than its factorization.

71830743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269121.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 71830743 is about 8475.3019415240. The cubic root of 71830743 is about 415.6905192506.

The spelling of 71830743 in words is "seventy-one million, eight hundred thirty thousand, seven hundred forty-three".