82725641 has 12 divisors (see below), whose sum is σ = 87397632. Its totient is φ = 78153768.

The previous prime is 82725631. The next prime is 82725649. The reversal of 82725641 is 14652728.

It is a de Polignac number, because none of the positive numbers 2^k-82725641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82725649) 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 11 ways as a sum of consecutive naturals, for example, 370856 + ... + 371078.

It is an arithmetic number, because the mean of its divisors is an integer number (7283136).

Almost surely, 2^82725641 is an apocalyptic number.

It is an amenable number.

82725641 is a deficient number, since it is larger than the sum of its proper divisors (4671991).

82725641 is a wasteful number, since it uses less digits than its factorization.

82725641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 373 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 82725641 is about 9095.3637090553. The cubic root of 82725641 is about 435.7259047234.

The spelling of 82725641 in words is "eighty-two million, seven hundred twenty-five thousand, six hundred forty-one".