86128577 has 8 divisors (see below), whose sum is σ = 92873760. Its totient is φ = 79604640.

The previous prime is 86128573. The next prime is 86128589. The reversal of 86128577 is 77582168.

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 86128577 - 2² = 86128573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86128573) 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, 54503 + ... + 56060.

It is an arithmetic number, because the mean of its divisors is an integer number (11609220).

Almost surely, 2^86128577 is an apocalyptic number.

It is an amenable number.

86128577 is a deficient number, since it is larger than the sum of its proper divisors (6745183).

86128577 is a wasteful number, since it uses less digits than its factorization.

86128577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110623.

The product of its digits is 188160, while the sum is 44.

The square root of 86128577 is about 9280.5483135427. The cubic root of 86128577 is about 441.6203632642.

The spelling of 86128577 in words is "eighty-six million, one hundred twenty-eight thousand, five hundred seventy-seven".