86862291 has 16 divisors (see below), whose sum is σ = 117218304. Its totient is φ = 57212064.

The previous prime is 86862289. The next prime is 86862311. The reversal of 86862291 is 19226868.

It is not a de Polignac number, because 86862291 - 2¹ = 86862289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86862241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104620 + ... + 105446.

It is an arithmetic number, because the mean of its divisors is an integer number (7326144).

Almost surely, 2^86862291 is an apocalyptic number.

86862291 is a deficient number, since it is larger than the sum of its proper divisors (30356013).

86862291 is a wasteful number, since it uses less digits than its factorization.

86862291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its digits is 82944, while the sum is 42.

The square root of 86862291 is about 9319.9941523587. The cubic root of 86862291 is about 442.8708474675.

It can be divided in two parts, 86862 and 291, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 86862291 in words is "eighty-six million, eight hundred sixty-two thousand, two hundred ninety-one".