189834497 has 2 divisors, whose sum is σ = 189834498. Its totient is φ = 189834496.

The previous prime is 189834467. The next prime is 189834503. The reversal of 189834497 is 794438981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157979761 + 31854736 = 12569^2 + 5644^2 .

It is a cyclic number.

It is not a de Polignac number, because 189834497 - 2¹⁰ = 189833473 is a prime.

It is not a weakly prime, because it can be changed into another prime (189834467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94917248 + 94917249.

It is an arithmetic number, because the mean of its divisors is an integer number (94917249).

Almost surely, 2^189834497 is an apocalyptic number.

It is an amenable number.

189834497 is a deficient number, since it is larger than the sum of its proper divisors (1).

189834497 is an equidigital number, since it uses as much as digits as its factorization.

189834497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The square root of 189834497 is about 13778.0440193810. The cubic root of 189834497 is about 574.7227366473.

The spelling of 189834497 in words is "one hundred eighty-nine million, eight hundred thirty-four thousand, four hundred ninety-seven".