86749111 has 4 divisors (see below), whose sum is σ = 86939392. Its totient is φ = 86558832.

The previous prime is 86749109. The next prime is 86749133. The reversal of 86749111 is 11194768.

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 86749111 - 2¹ = 86749109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86749211) 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, 94455 + ... + 95368.

It is an arithmetic number, because the mean of its divisors is an integer number (21734848).

Almost surely, 2^86749111 is an apocalyptic number.

86749111 is a deficient number, since it is larger than the sum of its proper divisors (190281).

86749111 is a wasteful number, since it uses less digits than its factorization.

86749111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190280.

The product of its digits is 12096, while the sum is 37.

The square root of 86749111 is about 9313.9202809558. The cubic root of 86749111 is about 442.6784129523.

The spelling of 86749111 in words is "eighty-six million, seven hundred forty-nine thousand, one hundred eleven".