87842135 has 8 divisors (see below), whose sum is σ = 107138976. Its totient is φ = 69121440.

The previous prime is 87842113. The next prime is 87842143. The reversal of 87842135 is 53124878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-87842135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143699 + ... + 144308.

It is an arithmetic number, because the mean of its divisors is an integer number (13392372).

Almost surely, 2^87842135 is an apocalyptic number.

87842135 is a deficient number, since it is larger than the sum of its proper divisors (19296841).

87842135 is a wasteful number, since it uses less digits than its factorization.

87842135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288073.

The product of its digits is 53760, while the sum is 38.

The square root of 87842135 is about 9372.4135098703. The cubic root of 87842135 is about 444.5298826834.

The spelling of 87842135 in words is "eighty-seven million, eight hundred forty-two thousand, one hundred thirty-five".