189967733 has 2 divisors, whose sum is σ = 189967734. Its totient is φ = 189967732.

The previous prime is 189967727. The next prime is 189967753. The reversal of 189967733 is 337769981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119290084 + 70677649 = 10922^2 + 8407^2 .

It is a cyclic number.

It is not a de Polignac number, because 189967733 - 2¹⁸ = 189705589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189967753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94983866 + 94983867.

It is an arithmetic number, because the mean of its divisors is an integer number (94983867).

Almost surely, 2^189967733 is an apocalyptic number.

It is an amenable number.

189967733 is a deficient number, since it is larger than the sum of its proper divisors (1).

189967733 is an equidigital number, since it uses as much as digits as its factorization.

189967733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 53.

The square root of 189967733 is about 13782.8782552847. The cubic root of 189967733 is about 574.8571622517.

The spelling of 189967733 in words is "one hundred eighty-nine million, nine hundred sixty-seven thousand, seven hundred thirty-three".