82780096 has 28 divisors (see below), whose sum is σ = 187734448. Its totient is φ = 35476992.

The previous prime is 82780081. The next prime is 82780097. The reversal of 82780096 is 69008728.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82780097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91941 + ... + 92836.

Almost surely, 2^82780096 is an apocalyptic number.

It is an amenable number.

82780096 is an abundant number, since it is smaller than the sum of its proper divisors (104954352).

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

82780096 is a wasteful number, since it uses less digits than its factorization.

82780096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184796 (or 184786 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 82780096 is about 9098.3567747149. The cubic root of 82780096 is about 435.8214907653.

The spelling of 82780096 in words is "eighty-two million, seven hundred eighty thousand, ninety-six".