82973943 has 32 divisors (see below), whose sum is σ = 135979200. Its totient is φ = 49673088.

The previous prime is 82973921. The next prime is 82973953. The reversal of 82973943 is 34937928.

It is a happy number.

It is not a de Polignac number, because 82973943 - 2⁵ = 82973911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82973953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9793 + ... + 16181.

It is an arithmetic number, because the mean of its divisors is an integer number (4249350).

Almost surely, 2^82973943 is an apocalyptic number.

82973943 is a deficient number, since it is larger than the sum of its proper divisors (53005257).

82973943 is a wasteful number, since it uses less digits than its factorization.

82973943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448 (or 6442 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 82973943 is about 9109.0034032269. The cubic root of 82973943 is about 436.1614147873.

The spelling of 82973943 in words is "eighty-two million, nine hundred seventy-three thousand, nine hundred forty-three".