164596986 has 12 divisors (see below), whose sum is σ = 356626842. Its totient is φ = 54865656.

The previous prime is 164596951. The next prime is 164597003. The reversal of 164596986 is 689695461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100100025 + 64496961 = 10005^2 + 8031^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4572121 + ... + 4572156.

Almost surely, 2^164596986 is an apocalyptic number.

164596986 is an abundant number, since it is smaller than the sum of its proper divisors (192029856).

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

164596986 is a wasteful number, since it uses less digits than its factorization.

164596986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9144285 (or 9144282 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 164596986 is about 12829.5356891822. The cubic root of 164596986 is about 548.0337348476.

The spelling of 164596986 in words is "one hundred sixty-four million, five hundred ninety-six thousand, nine hundred eighty-six".