189429677 has 16 divisors (see below), whose sum is σ = 205583040. Its totient is φ = 173933568.

The previous prime is 189429673. The next prime is 189429689. The reversal of 189429677 is 776924981.

It is a cyclic number.

It is not a de Polignac number, because 189429677 - 2² = 189429673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189429673) 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 15 ways as a sum of consecutive naturals, for example, 328013 + ... + 328589.

It is an arithmetic number, because the mean of its divisors is an integer number (12848940).

Almost surely, 2^189429677 is an apocalyptic number.

It is an amenable number.

189429677 is a deficient number, since it is larger than the sum of its proper divisors (16153363).

189429677 is a wasteful number, since it uses less digits than its factorization.

189429677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its digits is 1524096, while the sum is 53.

The square root of 189429677 is about 13763.3454145422. The cubic root of 189429677 is about 574.3139159126.

The spelling of 189429677 in words is "one hundred eighty-nine million, four hundred twenty-nine thousand, six hundred seventy-seven".