82644605 has 8 divisors (see below), whose sum is σ = 102372864. Its totient is φ = 63982800.

The previous prime is 82644593. The next prime is 82644613. The reversal of 82644605 is 50644628.

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

It is not a de Polignac number, because 82644605 - 2²⁰ = 81596029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266441 + ... + 266750.

It is an arithmetic number, because the mean of its divisors is an integer number (12796608).

Almost surely, 2^82644605 is an apocalyptic number.

It is an amenable number.

82644605 is a deficient number, since it is larger than the sum of its proper divisors (19728259).

82644605 is a wasteful number, since it uses less digits than its factorization.

82644605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533227.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 82644605 is about 9090.9078204545. The cubic root of 82644605 is about 435.5835827875.

The spelling of 82644605 in words is "eighty-two million, six hundred forty-four thousand, six hundred five".