82911445 has 8 divisors (see below), whose sum is σ = 99580320. Its totient is φ = 66271440.

The previous prime is 82911443. The next prime is 82911463. The reversal of 82911445 is 54411928.

It is a happy number.

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

It is not a de Polignac number, because 82911445 - 2¹ = 82911443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82911445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82911443) 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, 291 + ... + 12880.

It is an arithmetic number, because the mean of its divisors is an integer number (12447540).

Almost surely, 2^82911445 is an apocalyptic number.

It is an amenable number.

82911445 is a deficient number, since it is larger than the sum of its proper divisors (16668875).

82911445 is a wasteful number, since it uses less digits than its factorization.

82911445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435.

The product of its digits is 11520, while the sum is 34.

The square root of 82911445 is about 9105.5721950902. The cubic root of 82911445 is about 436.0518781380.

The spelling of 82911445 in words is "eighty-two million, nine hundred eleven thousand, four hundred forty-five".