82647434 has 16 divisors (see below), whose sum is σ = 125480256. Its totient is φ = 40824000.

The previous prime is 82647413. The next prime is 82647437. The reversal of 82647434 is 43474628.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82647437) 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 7 ways as a sum of consecutive naturals, for example, 63074 + ... + 64370.

It is an arithmetic number, because the mean of its divisors is an integer number (7842516).

Almost surely, 2^82647434 is an apocalyptic number.

82647434 is a deficient number, since it is larger than the sum of its proper divisors (42832822).

82647434 is a wasteful number, since it uses less digits than its factorization.

82647434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its digits is 129024, while the sum is 38.

The square root of 82647434 is about 9091.0634141447. The cubic root of 82647434 is about 435.5885528715.

The spelling of 82647434 in words is "eighty-two million, six hundred forty-seven thousand, four hundred thirty-four".