86190644 has 12 divisors (see below), whose sum is σ = 150996384. Its totient is φ = 43048824.

The previous prime is 86190641. The next prime is 86190653. The reversal of 86190644 is 44609168.

It is a super-2 number, since 2×86190644² = 14857654226269472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86190598 and 86190607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86190641) by changing a digit.

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, 7274 + ... + 15009.

It is an arithmetic number, because the mean of its divisors is an integer number (12583032).

Almost surely, 2^86190644 is an apocalyptic number.

It is an amenable number.

86190644 is a deficient number, since it is larger than the sum of its proper divisors (64805740).

86190644 is a wasteful number, since it uses less digits than its factorization.

86190644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23254 (or 23252 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 86190644 is about 9283.8916409015. The cubic root of 86190644 is about 441.7264196994.

The spelling of 86190644 in words is "eighty-six million, one hundred ninety thousand, six hundred forty-four".