86191368 has 32 divisors (see below), whose sum is σ = 216734400. Its totient is φ = 28563008.

The previous prime is 86191363. The next prime is 86191381. The reversal of 86191368 is 86319168.

It is a super-2 number, since 2×86191368² = 14857903835422848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86191361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (6772950).

Almost surely, 2^86191368 is an apocalyptic number.

It is an amenable number.

86191368 is an abundant number, since it is smaller than the sum of its proper divisors (130543032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86191368 is a wasteful number, since it uses less digits than its factorization.

86191368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20941 (or 20937 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 86191368 is about 9283.9306330886. The cubic root of 86191368 is about 441.7276565275.

It can be divided in two parts, 861 and 91368, that added together give a palindrome (92229).

The spelling of 86191368 in words is "eighty-six million, one hundred ninety-one thousand, three hundred sixty-eight".