82811315 has 8 divisors (see below), whose sum is σ = 99597600. Its totient is φ = 66099712.

The previous prime is 82811299. The next prime is 82811371. The reversal of 82811315 is 51311828.

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

It is a cyclic number.

It is not a de Polignac number, because 82811315 - 2⁴ = 82811299 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16199 + ... + 20688.

It is an arithmetic number, because the mean of its divisors is an integer number (12449700).

Almost surely, 2^82811315 is an apocalyptic number.

82811315 is a deficient number, since it is larger than the sum of its proper divisors (16786285).

82811315 is a wasteful number, since it uses less digits than its factorization.

82811315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37341.

The product of its digits is 1920, while the sum is 29.

The square root of 82811315 is about 9100.0722524604. The cubic root of 82811315 is about 435.8762712489.

The spelling of 82811315 in words is "eighty-two million, eight hundred eleven thousand, three hundred fifteen".