189607965 has 8 divisors (see below), whose sum is σ = 303372768. Its totient is φ = 101124240.

The previous prime is 189607961. The next prime is 189607967. The reversal of 189607965 is 569706981.

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

It is not a de Polignac number, because 189607965 - 2² = 189607961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189607961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6320251 + ... + 6320280.

It is an arithmetic number, because the mean of its divisors is an integer number (37921596).

Almost surely, 2^189607965 is an apocalyptic number.

189607965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189607965 is a deficient number, since it is larger than the sum of its proper divisors (113764803).

189607965 is a wasteful number, since it uses less digits than its factorization.

189607965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640539.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 189607965 is about 13769.8208049342. The cubic root of 189607965 is about 574.4940375884.

The spelling of 189607965 in words is "one hundred eighty-nine million, six hundred seven thousand, nine hundred sixty-five".