82195678 has 8 divisors (see below), whose sum is σ = 123688368. Its totient is φ = 40966224.

The previous prime is 82195669. The next prime is 82195681. The reversal of 82195678 is 87659128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×82195678² = 13512258963759368, which contains 22 as substring.

It is a congruent number.

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, 65026 + ... + 66277.

It is an arithmetic number, because the mean of its divisors is an integer number (15461046).

Almost surely, 2^82195678 is an apocalyptic number.

82195678 is a deficient number, since it is larger than the sum of its proper divisors (41492690).

82195678 is a wasteful number, since it uses less digits than its factorization.

82195678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131618.

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

The square root of 82195678 is about 9066.1832101497. The cubic root of 82195678 is about 434.7934510667.

The spelling of 82195678 in words is "eighty-two million, one hundred ninety-five thousand, six hundred seventy-eight".