189488463 has 8 divisors (see below), whose sum is σ = 265948800. Its totient is φ = 119676888.

The previous prime is 189488459. The next prime is 189488479. The reversal of 189488463 is 364884981.

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

It is not a de Polignac number, because 189488463 - 2² = 189488459 is a prime.

It is a super-2 number, since 2×189488463² = 71811755220204738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189488263) 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, 1662123 + ... + 1662236.

It is an arithmetic number, because the mean of its divisors is an integer number (33243600).

Almost surely, 2^189488463 is an apocalyptic number.

189488463 is a deficient number, since it is larger than the sum of its proper divisors (76460337).

189488463 is a wasteful number, since it uses less digits than its factorization.

189488463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324381.

The product of its digits is 1327104, while the sum is 51.

The square root of 189488463 is about 13765.4808488480. The cubic root of 189488463 is about 574.3733190054.

The spelling of 189488463 in words is "one hundred eighty-nine million, four hundred eighty-eight thousand, four hundred sixty-three".