189706608 has 240 divisors, whose sum is σ = 675956736. Its totient is φ = 48314880.

The previous prime is 189706607. The next prime is 189706609. The reversal of 189706608 is 806607981.

It is a happy number.

189706608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189706607) and next prime (189706609).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189706607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 405991 + ... + 406457.

Almost surely, 2^189706608 is an apocalyptic number.

189706608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189706608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337978368).

189706608 is an abundant number, since it is smaller than the sum of its proper divisors (486250128).

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

189706608 is a wasteful number, since it uses less digits than its factorization.

189706608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 189706608 is about 13773.4021940841. The cubic root of 189706608 is about 574.5936466085.

The spelling of 189706608 in words is "one hundred eighty-nine million, seven hundred six thousand, six hundred eight".