86266291 has 4 divisors (see below), whose sum is σ = 88101792. Its totient is φ = 84430792.

The previous prime is 86266267. The next prime is 86266331. The reversal of 86266291 is 19266268.

It is a happy number.

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 86266291 - 2⁵ = 86266259 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86266231) 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, 917680 + ... + 917773.

It is an arithmetic number, because the mean of its divisors is an integer number (22025448).

Almost surely, 2^86266291 is an apocalyptic number.

86266291 is a deficient number, since it is larger than the sum of its proper divisors (1835501).

86266291 is a wasteful number, since it uses less digits than its factorization.

86266291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835500.

The product of its digits is 62208, while the sum is 40.

The square root of 86266291 is about 9287.9648470480. The cubic root of 86266291 is about 441.8556120178.

The spelling of 86266291 in words is "eighty-six million, two hundred sixty-six thousand, two hundred ninety-one".