164863924 has 6 divisors (see below), whose sum is σ = 288511874. Its totient is φ = 82431960.

The previous prime is 164863901. The next prime is 164863939. The reversal of 164863924 is 429368461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 83539600 + 81324324 = 9140^2 + 9018^2 .

It is a super-2 number, since 2×164863924² = 54360226873355552, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 20607987 + ... + 20607994.

Almost surely, 2^164863924 is an apocalyptic number.

It is an amenable number.

164863924 is a deficient number, since it is larger than the sum of its proper divisors (123647950).

164863924 is a wasteful number, since it uses less digits than its factorization.

164863924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41215985 (or 41215983 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 164863924 is about 12839.9347350366. The cubic root of 164863924 is about 548.3298358891.

The spelling of 164863924 in words is "one hundred sixty-four million, eight hundred sixty-three thousand, nine hundred twenty-four".