86189768 has 16 divisors (see below), whose sum is σ = 184692480. Its totient is φ = 36938448.

The previous prime is 86189731. The next prime is 86189771. The reversal of 86189768 is 86798168.

It is a super-2 number, since 2×86189768² = 14857352215787648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769496 + ... + 769607.

It is an arithmetic number, because the mean of its divisors is an integer number (11543280).

Almost surely, 2^86189768 is an apocalyptic number.

It is an amenable number.

86189768 is an abundant number, since it is smaller than the sum of its proper divisors (98502712).

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

86189768 is a wasteful number, since it uses less digits than its factorization.

86189768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539116 (or 1539112 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 86189768 is about 9283.8444622904. The cubic root of 86189768 is about 441.7249231964.

Subtracting 86189768 from its reverse (86798168), we obtain a square (608400 = 780²).

The spelling of 86189768 in words is "eighty-six million, one hundred eighty-nine thousand, seven hundred sixty-eight".