189376349 has 4 divisors (see below), whose sum is σ = 189412380. Its totient is φ = 189340320.

The previous prime is 189376337. The next prime is 189376373. The reversal of 189376349 is 943673981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943673981 = 107 ⋅8819383.

It can be written as a sum of positive squares in 2 ways, for example, as 77757124 + 111619225 = 8818^2 + 10565^2 .

It is a cyclic number.

It is not a de Polignac number, because 189376349 - 2²⁰ = 188327773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189376297 and 189376306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189376849) 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, 8432 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (47353095).

Almost surely, 2^189376349 is an apocalyptic number.

It is an amenable number.

189376349 is a deficient number, since it is larger than the sum of its proper divisors (36031).

189376349 is an equidigital number, since it uses as much as digits as its factorization.

189376349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36030.

The product of its digits is 979776, while the sum is 50.

The square root of 189376349 is about 13761.4079584903. The cubic root of 189376349 is about 574.2600174819.

The spelling of 189376349 in words is "one hundred eighty-nine million, three hundred seventy-six thousand, three hundred forty-nine".