186486964 has 12 divisors (see below), whose sum is σ = 331884000. Its totient is φ = 91662968.

The previous prime is 186486961. The next prime is 186487027. The reversal of 186486964 is 469684681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186486961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394864 + ... + 395335.

It is an arithmetic number, because the mean of its divisors is an integer number (27657000).

Almost surely, 2^186486964 is an apocalyptic number.

It is an amenable number.

186486964 is a deficient number, since it is larger than the sum of its proper divisors (145397036).

186486964 is a wasteful number, since it uses less digits than its factorization.

186486964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790262 (or 790260 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 186486964 is about 13656.0229935366. The cubic root of 186486964 is about 571.3244710723.

The spelling of 186486964 in words is "one hundred eighty-six million, four hundred eighty-six thousand, nine hundred sixty-four".