86497144 has 8 divisors (see below), whose sum is σ = 162182160. Its totient is φ = 43248568.

The previous prime is 86497133. The next prime is 86497153. The reversal of 86497144 is 44179468.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 86497144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5406064 + ... + 5406079.

It is an arithmetic number, because the mean of its divisors is an integer number (20272770).

Almost surely, 2^86497144 is an apocalyptic number.

It is an amenable number.

86497144 is a deficient number, since it is larger than the sum of its proper divisors (75685016).

86497144 is a wasteful number, since it uses less digits than its factorization.

86497144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812149 (or 10812145 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 86497144 is about 9300.3840780905. The cubic root of 86497144 is about 442.2494036847.

The spelling of 86497144 in words is "eighty-six million, four hundred ninety-seven thousand, one hundred forty-four".