87082513 has 8 divisors (see below), whose sum is σ = 101008832. Its totient is φ = 73527696.

The previous prime is 87082507. The next prime is 87082519. The reversal of 87082513 is 31528078.

It is an interprime number because it is at equal distance from previous prime (87082507) and next prime (87082519).

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 87082513 - 2¹⁷ = 86951441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87082519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92370 + ... + 93307.

It is an arithmetic number, because the mean of its divisors is an integer number (12626104).

Almost surely, 2^87082513 is an apocalyptic number.

It is an amenable number.

87082513 is a deficient number, since it is larger than the sum of its proper divisors (13926319).

87082513 is a wasteful number, since it uses less digits than its factorization.

87082513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185751.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 87082513 is about 9331.8011659058. The cubic root of 87082513 is about 443.2448018268.

The spelling of 87082513 in words is "eighty-seven million, eighty-two thousand, five hundred thirteen".