189107983 has 8 divisors (see below), whose sum is σ = 201251952. Its totient is φ = 177077376.

The previous prime is 189107977. The next prime is 189107993. The reversal of 189107983 is 389701981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189107983 - 2¹³ = 189099791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189107923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24885 + ... + 31582.

It is an arithmetic number, because the mean of its divisors is an integer number (25156494).

Almost surely, 2^189107983 is an apocalyptic number.

189107983 is a deficient number, since it is larger than the sum of its proper divisors (12143969).

189107983 is a wasteful number, since it uses less digits than its factorization.

189107983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56681.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 189107983 is about 13751.6538278129. The cubic root of 189107983 is about 573.9886271709.

The spelling of 189107983 in words is "one hundred eighty-nine million, one hundred seven thousand, nine hundred eighty-three".