87233613 has 16 divisors (see below), whose sum is σ = 124845696. Its totient is φ = 53982720.

The previous prime is 87233611. The next prime is 87233621. The reversal of 87233613 is 31633278.

It is not a de Polignac number, because 87233613 - 2¹ = 87233611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87233611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7993 + ... + 15438.

It is an arithmetic number, because the mean of its divisors is an integer number (7802856).

Almost surely, 2^87233613 is an apocalyptic number.

It is an amenable number.

87233613 is a deficient number, since it is larger than the sum of its proper divisors (37612083).

87233613 is a wasteful number, since it uses less digits than its factorization.

87233613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23524.

The product of its digits is 18144, while the sum is 33.

The square root of 87233613 is about 9339.8936289446. The cubic root of 87233613 is about 443.5010170264.

The spelling of 87233613 in words is "eighty-seven million, two hundred thirty-three thousand, six hundred thirteen".