86617811 has 4 divisors (see below), whose sum is σ = 98991792. Its totient is φ = 74243832.

The previous prime is 86617807. The next prime is 86617819. The reversal of 86617811 is 11871668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86617811 - 2² = 86617807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86617819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6186980 + ... + 6186993.

It is an arithmetic number, because the mean of its divisors is an integer number (24747948).

Almost surely, 2^86617811 is an apocalyptic number.

86617811 is a deficient number, since it is larger than the sum of its proper divisors (12373981).

86617811 is a wasteful number, since it uses less digits than its factorization.

86617811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12373980.

The product of its digits is 16128, while the sum is 38.

The square root of 86617811 is about 9306.8690223942. The cubic root of 86617811 is about 442.4549600385.

The spelling of 86617811 in words is "eighty-six million, six hundred seventeen thousand, eight hundred eleven".