189689753 has 8 divisors (see below), whose sum is σ = 207113760. Its totient is φ = 172295680.

The previous prime is 189689741. The next prime is 189689767. The reversal of 189689753 is 357986981.

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 189689753 - 2⁴ = 189689737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189689653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7001 + ... + 20697.

It is an arithmetic number, because the mean of its divisors is an integer number (25889220).

Almost surely, 2^189689753 is an apocalyptic number.

It is an amenable number.

189689753 is a deficient number, since it is larger than the sum of its proper divisors (17424007).

189689753 is a wasteful number, since it uses less digits than its factorization.

189689753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967.

The product of its digits is 3265920, while the sum is 56.

The square root of 189689753 is about 13772.7903127870. The cubic root of 189689753 is about 574.5766289923.

The spelling of 189689753 in words is "one hundred eighty-nine million, six hundred eighty-nine thousand, seven hundred fifty-three".