163790830 has 96 divisors (see below), whose sum is σ = 367472160. Its totient is φ = 52254720.

The previous prime is 163790821. The next prime is 163790867. The reversal of 163790830 is 38097361.

It is a self number, because there is not a number n which added to its sum of digits gives 163790830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 679510 + ... + 679750.

It is an arithmetic number, because the mean of its divisors is an integer number (3827835).

Almost surely, 2^163790830 is an apocalyptic number.

163790830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163790830 is an abundant number, since it is smaller than the sum of its proper divisors (203681330).

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

163790830 is a wasteful number, since it uses less digits than its factorization.

163790830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 163790830 is about 12798.0791527479. The cubic root of 163790830 is about 547.1375581906.

The spelling of 163790830 in words is "one hundred sixty-three million, seven hundred ninety thousand, eight hundred thirty".