82272291 has 8 divisors (see below), whose sum is σ = 110180544. Its totient is φ = 54606120.

The previous prime is 82272221. The next prime is 82272313. The reversal of 82272291 is 19227228.

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

It is not a de Polignac number, because 82272291 - 2¹³ = 82264099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82272221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59725 + ... + 61086.

It is an arithmetic number, because the mean of its divisors is an integer number (13772568).

Almost surely, 2^82272291 is an apocalyptic number.

82272291 is a deficient number, since it is larger than the sum of its proper divisors (27908253).

82272291 is a wasteful number, since it uses less digits than its factorization.

82272291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121041.

The product of its digits is 8064, while the sum is 33.

The square root of 82272291 is about 9070.4074329657. The cubic root of 82272291 is about 434.9284966367.

The spelling of 82272291 in words is "eighty-two million, two hundred seventy-two thousand, two hundred ninety-one".