164613628 has 12 divisors (see below), whose sum is σ = 298007640. Its totient is φ = 79468592.

The previous prime is 164613623. The next prime is 164613637. The reversal of 164613628 is 826316461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164613623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709426 + ... + 709657.

It is an arithmetic number, because the mean of its divisors is an integer number (24833970).

Almost surely, 2^164613628 is an apocalyptic number.

It is an amenable number.

164613628 is a deficient number, since it is larger than the sum of its proper divisors (133394012).

164613628 is a wasteful number, since it uses less digits than its factorization.

164613628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419116 (or 1419114 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 164613628 is about 12830.1842543278. The cubic root of 164613628 is about 548.0522043435.

The spelling of 164613628 in words is "one hundred sixty-four million, six hundred thirteen thousand, six hundred twenty-eight".