189697929 has 8 divisors (see below), whose sum is σ = 252994272. Its totient is φ = 126433440.

The previous prime is 189697901. The next prime is 189697931. The reversal of 189697929 is 929796981.

It is a happy number.

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

It is not a de Polignac number, because 189697929 - 2¹³ = 189689737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189697979) 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, 18502 + ... + 26864.

It is an arithmetic number, because the mean of its divisors is an integer number (31624284).

Almost surely, 2^189697929 is an apocalyptic number.

It is an amenable number.

189697929 is a deficient number, since it is larger than the sum of its proper divisors (63296343).

189697929 is an equidigital number, since it uses as much as digits as its factorization.

189697929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15927.

The product of its digits is 4408992, while the sum is 60.

The square root of 189697929 is about 13773.0871267120. The cubic root of 189697929 is about 574.5848839998.

The spelling of 189697929 in words is "one hundred eighty-nine million, six hundred ninety-seven thousand, nine hundred twenty-nine".