82072243 has 18 divisors (see below), whose sum is σ = 95871188. Its totient is φ = 70192320.

The previous prime is 82072223. The next prime is 82072271. The reversal of 82072243 is 34227028.

It is not a de Polignac number, because 82072243 - 2¹³ = 82064051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82072223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33796 + ... + 36142.

Almost surely, 2^82072243 is an apocalyptic number.

82072243 is a deficient number, since it is larger than the sum of its proper divisors (13798945).

82072243 is a wasteful number, since it uses less digits than its factorization.

82072243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 82072243 is about 9059.3732123144. The cubic root of 82072243 is about 434.5756958330.

The spelling of 82072243 in words is "eighty-two million, seventy-two thousand, two hundred forty-three".