189896169 has 8 divisors (see below), whose sum is σ = 254311200. Its totient is φ = 126039296.

The previous prime is 189896149. The next prime is 189896177. The reversal of 189896169 is 961698981.

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 189896169 - 2⁸ = 189895913 is a prime.

It is a super-2 number, since 2×189896169² = 72121110001753122, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189896129) 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, 138744 + ... + 140105.

It is an arithmetic number, because the mean of its divisors is an integer number (31788900).

Almost surely, 2^189896169 is an apocalyptic number.

It is an amenable number.

189896169 is a deficient number, since it is larger than the sum of its proper divisors (64415031).

189896169 is a wasteful number, since it uses less digits than its factorization.

189896169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279079.

The product of its digits is 1679616, while the sum is 57.

The square root of 189896169 is about 13780.2818911661. The cubic root of 189896169 is about 574.7849671051.

The spelling of 189896169 in words is "one hundred eighty-nine million, eight hundred ninety-six thousand, one hundred sixty-nine".