191628608 has 28 divisors (see below), whose sum is σ = 392533632. Its totient is φ = 92722560.

The previous prime is 191628601. The next prime is 191628611. The reversal of 191628608 is 806826191.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191628601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46310 + ... + 50277.

Almost surely, 2^191628608 is an apocalyptic number.

It is an amenable number.

191628608 is an abundant number, since it is smaller than the sum of its proper divisors (200905024).

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

191628608 is an equidigital number, since it uses as much as digits as its factorization.

191628608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96630 (or 96620 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 191628608 is about 13842.9985191071. The cubic root of 191628608 is about 576.5276158363.

Adding to 191628608 its sum of digits (41), we get a square (191628649 = 13843²).

The spelling of 191628608 in words is "one hundred ninety-one million, six hundred twenty-eight thousand, six hundred eight".