82519867 has 4 divisors (see below), whose sum is σ = 83277040. Its totient is φ = 81762696.

The previous prime is 82519849. The next prime is 82519897. The reversal of 82519867 is 76891528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82519867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82519817) 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, 378423 + ... + 378640.

It is an arithmetic number, because the mean of its divisors is an integer number (20819260).

Almost surely, 2^82519867 is an apocalyptic number.

82519867 is a deficient number, since it is larger than the sum of its proper divisors (757173).

82519867 is a wasteful number, since it uses less digits than its factorization.

82519867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757172.

The product of its digits is 241920, while the sum is 46.

The square root of 82519867 is about 9084.0446388159. The cubic root of 82519867 is about 435.3643259516.

The spelling of 82519867 in words is "eighty-two million, five hundred nineteen thousand, eight hundred sixty-seven".