87652439 has 8 divisors (see below), whose sum is σ = 100429728. Its totient is φ = 74939040.

The previous prime is 87652421. The next prime is 87652489. The reversal of 87652439 is 93425678.

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 87652439 - 2¹² = 87648343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87652439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87652489) 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, 12992 + ... + 18549.

It is an arithmetic number, because the mean of its divisors is an integer number (12553716).

Almost surely, 2^87652439 is an apocalyptic number.

87652439 is a deficient number, since it is larger than the sum of its proper divisors (12777289).

87652439 is a wasteful number, since it uses less digits than its factorization.

87652439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31945.

The product of its digits is 362880, while the sum is 44.

The square root of 87652439 is about 9362.2881284438. The cubic root of 87652439 is about 444.2096631055.

The spelling of 87652439 in words is "eighty-seven million, six hundred fifty-two thousand, four hundred thirty-nine".