163969630 has 16 divisors (see below), whose sum is σ = 321976944. Its totient is φ = 59625280.

The previous prime is 163969627. The next prime is 163969649. The reversal of 163969630 is 36969361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745207 + ... + 745426.

It is an arithmetic number, because the mean of its divisors is an integer number (20123559).

Almost surely, 2^163969630 is an apocalyptic number.

163969630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163969630 is a deficient number, since it is larger than the sum of its proper divisors (158007314).

163969630 is a wasteful number, since it uses less digits than its factorization.

163969630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490651.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 163969630 is about 12805.0626706783. The cubic root of 163969630 is about 547.3365775117.

The spelling of 163969630 in words is "one hundred sixty-three million, nine hundred sixty-nine thousand, six hundred thirty".