82128334 has 8 divisors (see below), whose sum is σ = 124677000. Its totient is φ = 40569336.

The previous prime is 82128257. The next prime is 82128337. The reversal of 82128334 is 43382128.

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

It is a junction number, because it is equal to n+sod(n) for n = 82128296 and 82128305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82128337) 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, 247209 + ... + 247540.

It is an arithmetic number, because the mean of its divisors is an integer number (15584625).

Almost surely, 2^82128334 is an apocalyptic number.

82128334 is a deficient number, since it is larger than the sum of its proper divisors (42548666).

82128334 is a wasteful number, since it uses less digits than its factorization.

82128334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494834.

The product of its digits is 9216, while the sum is 31.

The square root of 82128334 is about 9062.4684275312. The cubic root of 82128334 is about 434.6746746249.

The spelling of 82128334 in words is "eighty-two million, one hundred twenty-eight thousand, three hundred thirty-four".