82514987 has 4 divisors (see below), whose sum is σ = 83108760. Its totient is φ = 81921216.

The previous prime is 82514983. The next prime is 82515023. The reversal of 82514987 is 78941528.

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 82514987 - 2² = 82514983 is a prime.

It is a super-2 number, since 2×82514987² = 13617446159220338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82514983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296678 + ... + 296955.

It is an arithmetic number, because the mean of its divisors is an integer number (20777190).

Almost surely, 2^82514987 is an apocalyptic number.

82514987 is a deficient number, since it is larger than the sum of its proper divisors (593773).

82514987 is a wasteful number, since it uses less digits than its factorization.

82514987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593772.

The product of its digits is 161280, while the sum is 44.

The square root of 82514987 is about 9083.7760320254. The cubic root of 82514987 is about 435.3557436959.

The spelling of 82514987 in words is "eighty-two million, five hundred fourteen thousand, nine hundred eighty-seven".