189326473 has 4 divisors (see below), whose sum is σ = 216373120. Its totient is φ = 162279828.

The previous prime is 189326461. The next prime is 189326477. The reversal of 189326473 is 374623981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189326473 - 2¹³ = 189318281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189326477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13523313 + ... + 13523326.

It is an arithmetic number, because the mean of its divisors is an integer number (54093280).

Almost surely, 2^189326473 is an apocalyptic number.

It is an amenable number.

189326473 is a deficient number, since it is larger than the sum of its proper divisors (27046647).

189326473 is an equidigital number, since it uses as much as digits as its factorization.

189326473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27046646.

The product of its digits is 217728, while the sum is 43.

The square root of 189326473 is about 13759.5956699316. The cubic root of 189326473 is about 574.2095988180.

The spelling of 189326473 in words is "one hundred eighty-nine million, three hundred twenty-six thousand, four hundred seventy-three".