82808445 has 32 divisors (see below), whose sum is σ = 141447168. Its totient is φ = 41223168.

The previous prime is 82808437. The next prime is 82808489. The reversal of 82808445 is 54480828.

It is not a de Polignac number, because 82808445 - 2³ = 82808437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31107 + ... + 33663.

It is an arithmetic number, because the mean of its divisors is an integer number (4420224).

Almost surely, 2^82808445 is an apocalyptic number.

82808445 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82808445 is a deficient number, since it is larger than the sum of its proper divisors (58638723).

82808445 is a wasteful number, since it uses less digits than its factorization.

82808445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709.

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 82808445 is about 9099.9145600385. The cubic root of 82808445 is about 435.8712357882.

The spelling of 82808445 in words is "eighty-two million, eight hundred eight thousand, four hundred forty-five".