82270945 has 8 divisors (see below), whose sum is σ = 98775936. Its totient is φ = 65782896.

The previous prime is 82270919. The next prime is 82270963. The reversal of 82270945 is 54907228.

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

It is a cyclic number.

It is not a de Polignac number, because 82270945 - 2⁵ = 82270913 is a prime.

It is a Duffinian 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, 12394 + ... + 17836.

It is an arithmetic number, because the mean of its divisors is an integer number (12346992).

Almost surely, 2^82270945 is an apocalyptic number.

It is an amenable number.

82270945 is a deficient number, since it is larger than the sum of its proper divisors (16504991).

82270945 is a wasteful number, since it uses less digits than its factorization.

82270945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8471.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 82270945 is about 9070.3332353337. Note that the first 3 decimals coincide. The cubic root of 82270945 is about 434.9261247691.

The spelling of 82270945 in words is "eighty-two million, two hundred seventy thousand, nine hundred forty-five".