165003798 has 16 divisors (see below), whose sum is σ = 334529136. Its totient is φ = 54247680.

The previous prime is 165003779. The next prime is 165003799. The reversal of 165003798 is 897300561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165003799) 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 7 ways as a sum of consecutive naturals, for example, 187923 + ... + 188798.

It is an arithmetic number, because the mean of its divisors is an integer number (20908071).

Almost surely, 2^165003798 is an apocalyptic number.

165003798 is an abundant number, since it is smaller than the sum of its proper divisors (169525338).

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

165003798 is a wasteful number, since it uses less digits than its factorization.

165003798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376799.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 165003798 is about 12845.3804147639. The cubic root of 165003798 is about 548.4848635535.

The spelling of 165003798 in words is "one hundred sixty-five million, three thousand, seven hundred ninety-eight".