82707943 has 4 divisors (see below), whose sum is σ = 82753840. Its totient is φ = 82662048.

The previous prime is 82707917. The next prime is 82707959. The reversal of 82707943 is 34970728.

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

It is a cyclic number.

It is not a de Polignac number, because 82707943 - 2¹³ = 82699751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82707896 and 82707905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82707973) 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, 20130 + ... + 23887.

It is an arithmetic number, because the mean of its divisors is an integer number (20688460).

Almost surely, 2^82707943 is an apocalyptic number.

82707943 is a deficient number, since it is larger than the sum of its proper divisors (45897).

82707943 is a wasteful number, since it uses less digits than its factorization.

82707943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45896.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 82707943 is about 9094.3907437497. The cubic root of 82707943 is about 435.6948300088.

The spelling of 82707943 in words is "eighty-two million, seven hundred seven thousand, nine hundred forty-three".