163933406 has 32 divisors (see below), whose sum is σ = 318581760. Its totient is φ = 61438176.

The previous prime is 163933381. The next prime is 163933417. The reversal of 163933406 is 604339361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20246 + ... + 27161.

It is an arithmetic number, because the mean of its divisors is an integer number (9955680).

Almost surely, 2^163933406 is an apocalyptic number.

163933406 is a deficient number, since it is larger than the sum of its proper divisors (154648354).

163933406 is a wasteful number, since it uses less digits than its factorization.

163933406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47448.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 163933406 is about 12803.6481519917. The cubic root of 163933406 is about 547.2962688676.

The spelling of 163933406 in words is "one hundred sixty-three million, nine hundred thirty-three thousand, four hundred six".