164790635 has 4 divisors (see below), whose sum is σ = 197748768. Its totient is φ = 131832504.

The previous prime is 164790611. The next prime is 164790649. The reversal of 164790635 is 536097461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164790635 - 2¹⁸ = 164528491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164790592 and 164790601.

It is an unprimeable number.

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, 16479059 + ... + 16479068.

It is an arithmetic number, because the mean of its divisors is an integer number (49437192).

Almost surely, 2^164790635 is an apocalyptic number.

164790635 is a deficient number, since it is larger than the sum of its proper divisors (32958133).

164790635 is an equidigital number, since it uses as much as digits as its factorization.

164790635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32958132.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 164790635 is about 12837.0804702627. The cubic root of 164790635 is about 548.2485718974.

The spelling of 164790635 in words is "one hundred sixty-four million, seven hundred ninety thousand, six hundred thirty-five".