189601397 has 8 divisors (see below), whose sum is σ = 201199680. Its totient is φ = 178282720.

The previous prime is 189601393. The next prime is 189601403. The reversal of 189601397 is 793106981.

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 189601397 - 2² = 189601393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189601393) 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, 68504 + ... + 71217.

It is an arithmetic number, because the mean of its divisors is an integer number (25149960).

Almost surely, 2^189601397 is an apocalyptic number.

It is an amenable number.

189601397 is a deficient number, since it is larger than the sum of its proper divisors (11598283).

189601397 is a wasteful number, since it uses less digits than its factorization.

189601397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139803.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 189601397 is about 13769.5823102954. The cubic root of 189601397 is about 574.4874040408.

The spelling of 189601397 in words is "one hundred eighty-nine million, six hundred one thousand, three hundred ninety-seven".