86147887 has 8 divisors (see below), whose sum is σ = 98513696. Its totient is φ = 73796832.

The previous prime is 86147879. The next prime is 86147899. The reversal of 86147887 is 78874168.

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 86147887 - 2³ = 86147879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86147887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86147587) 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, 15493 + ... + 20305.

It is an arithmetic number, because the mean of its divisors is an integer number (12314212).

Almost surely, 2^86147887 is an apocalyptic number.

86147887 is a deficient number, since it is larger than the sum of its proper divisors (12365809).

86147887 is a wasteful number, since it uses less digits than its factorization.

86147887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377.

The product of its digits is 602112, while the sum is 49.

The square root of 86147887 is about 9281.5886032511. The cubic root of 86147887 is about 441.6533645137.

The spelling of 86147887 in words is "eighty-six million, one hundred forty-seven thousand, eight hundred eighty-seven".