82784516 has 12 divisors (see below), whose sum is σ = 147606732. Its totient is φ = 40611168.

The previous prime is 82784491. The next prime is 82784563. The reversal of 82784516 is 61548728.

It can be written as a sum of positive squares in 2 ways, for example, as 35450116 + 47334400 = 5954^2 + 6880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195035 + ... + 195458.

It is an arithmetic number, because the mean of its divisors is an integer number (12300561).

Almost surely, 2^82784516 is an apocalyptic number.

It is an amenable number.

82784516 is a deficient number, since it is larger than the sum of its proper divisors (64822216).

82784516 is a wasteful number, since it uses less digits than its factorization.

82784516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390550 (or 390548 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 82784516 is about 9098.5996724771. The cubic root of 82784516 is about 435.8292474475.

The spelling of 82784516 in words is "eighty-two million, seven hundred eighty-four thousand, five hundred sixteen".