82755408 has 40 divisors (see below), whose sum is σ = 214396000. Its totient is φ = 27506304.

The previous prime is 82755397. The next prime is 82755443. The reversal of 82755408 is 80455728.

It is a Cunningham number, because it is equal to 9097²-1.

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, 15918 + ... + 20466.

It is an arithmetic number, because the mean of its divisors is an integer number (5359900).

Almost surely, 2^82755408 is an apocalyptic number.

It is an amenable number.

82755408 is an abundant number, since it is smaller than the sum of its proper divisors (131640592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82755408 is a wasteful number, since it uses less digits than its factorization.

82755408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939 (or 4933 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 82755408 is about 9096.9999450368. Note that the first 4 decimals coincide. The cubic root of 82755408 is about 435.7781605797.

The spelling of 82755408 in words is "eighty-two million, seven hundred fifty-five thousand, four hundred eight".