189896983 has 8 divisors (see below), whose sum is σ = 191386800. Its totient is φ = 188412288.

The previous prime is 189896977. The next prime is 189896989. The reversal of 189896983 is 389698981.

189896983 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 (189896977) and next prime (189896989).

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 189896983 - 2²¹ = 187799831 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189896989) 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, 105253 + ... + 107041.

It is an arithmetic number, because the mean of its divisors is an integer number (23923350).

Almost surely, 2^189896983 is an apocalyptic number.

189896983 is a deficient number, since it is larger than the sum of its proper divisors (1489817).

189896983 is a wasteful number, since it uses less digits than its factorization.

189896983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 6718464, while the sum is 61.

The square root of 189896983 is about 13780.3114260890. The cubic root of 189896983 is about 574.7857883861.

The spelling of 189896983 in words is "one hundred eighty-nine million, eight hundred ninety-six thousand, nine hundred eighty-three".