86993611 has 4 divisors (see below), whose sum is σ = 87029424. Its totient is φ = 86957800.

The previous prime is 86993581. The next prime is 86993629. The reversal of 86993611 is 11639968.

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 86993611 - 2⁷ = 86993483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86993651) 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, 13975 + ... + 19216.

It is an arithmetic number, because the mean of its divisors is an integer number (21757356).

Almost surely, 2^86993611 is an apocalyptic number.

86993611 is a deficient number, since it is larger than the sum of its proper divisors (35813).

86993611 is a wasteful number, since it uses less digits than its factorization.

86993611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35812.

The product of its digits is 69984, while the sum is 43.

The square root of 86993611 is about 9327.0365604516. The cubic root of 86993611 is about 443.0939151746.

The spelling of 86993611 in words is "eighty-six million, nine hundred ninety-three thousand, six hundred eleven".