189673049 has 2 divisors, whose sum is σ = 189673050. Its totient is φ = 189673048.

The previous prime is 189673039. The next prime is 189673087. The reversal of 189673049 is 940376981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115713049 + 73960000 = 10757^2 + 8600^2 .

It is a cyclic number.

It is not a de Polignac number, because 189673049 - 2¹² = 189668953 is a prime.

It is a super-3 number, since 3×189673049³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 189672994 and 189673012.

It is not a weakly prime, because it can be changed into another prime (189673039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94836524 + 94836525.

It is an arithmetic number, because the mean of its divisors is an integer number (94836525).

Almost surely, 2^189673049 is an apocalyptic number.

It is an amenable number.

189673049 is a deficient number, since it is larger than the sum of its proper divisors (1).

189673049 is an equidigital number, since it uses as much as digits as its factorization.

189673049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 189673049 is about 13772.1838863704. The cubic root of 189673049 is about 574.5597628383.

The spelling of 189673049 in words is "one hundred eighty-nine million, six hundred seventy-three thousand, forty-nine".