82947895 has 8 divisors (see below), whose sum is σ = 102227904. Its totient is φ = 64564704.

The previous prime is 82947881. The next prime is 82947899. The reversal of 82947895 is 59874928.

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

It is not a de Polignac number, because 82947895 - 2¹¹ = 82945847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82947899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223999 + ... + 224368.

It is an arithmetic number, because the mean of its divisors is an integer number (12778488).

Almost surely, 2^82947895 is an apocalyptic number.

82947895 is a deficient number, since it is larger than the sum of its proper divisors (19280009).

82947895 is a wasteful number, since it uses less digits than its factorization.

82947895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448409.

The product of its digits is 1451520, while the sum is 52.

The square root of 82947895 is about 9107.5734968212. The cubic root of 82947895 is about 436.1157686435.

The spelling of 82947895 in words is "eighty-two million, nine hundred forty-seven thousand, eight hundred ninety-five".