82814015 has 4 divisors (see below), whose sum is σ = 99376824. Its totient is φ = 66251208.

The previous prime is 82814003. The next prime is 82814023. The reversal of 82814015 is 51041828.

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

It is a cyclic number.

It is not a de Polignac number, because 82814015 - 2⁴ = 82813999 is a prime.

It is a super-2 number, since 2×82814015² = 13716322160840450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8281397 + ... + 8281406.

It is an arithmetic number, because the mean of its divisors is an integer number (24844206).

Almost surely, 2^82814015 is an apocalyptic number.

82814015 is a deficient number, since it is larger than the sum of its proper divisors (16562809).

82814015 is a wasteful number, since it uses less digits than its factorization.

82814015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16562808.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 82814015 is about 9100.2206017217. The cubic root of 82814015 is about 435.8810083356.

The spelling of 82814015 in words is "eighty-two million, eight hundred fourteen thousand, fifteen".