87982613 has 8 divisors (see below), whose sum is σ = 92511936. Its totient is φ = 83512000.

The previous prime is 87982603. The next prime is 87982621. The reversal of 87982613 is 31628978.

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 87982613 - 2⁸ = 87982357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87982603) 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, 11588 + ... + 17613.

It is an arithmetic number, because the mean of its divisors is an integer number (11563992).

Almost surely, 2^87982613 is an apocalyptic number.

It is an amenable number.

87982613 is a deficient number, since it is larger than the sum of its proper divisors (4529323).

87982613 is a wasteful number, since it uses less digits than its factorization.

87982613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29355.

The product of its digits is 145152, while the sum is 44.

The square root of 87982613 is about 9379.9047436528. The cubic root of 87982613 is about 444.7667219860.

It can be divided in two parts, 8798 and 2613, that added together give a palindrome (11411).

The spelling of 87982613 in words is "eighty-seven million, nine hundred eighty-two thousand, six hundred thirteen".