192989497 has 2 divisors, whose sum is σ = 192989498. Its totient is φ = 192989496.

The previous prime is 192989471. The next prime is 192989507. The reversal of 192989497 is 794989291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136679481 + 56310016 = 11691^2 + 7504^2 .

It is a cyclic number.

It is not a de Polignac number, because 192989497 - 2⁷ = 192989369 is a prime.

It is not a weakly prime, because it can be changed into another prime (192989417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96494748 + 96494749.

It is an arithmetic number, because the mean of its divisors is an integer number (96494749).

Almost surely, 2^192989497 is an apocalyptic number.

It is an amenable number.

192989497 is a deficient number, since it is larger than the sum of its proper divisors (1).

192989497 is an equidigital number, since it uses as much as digits as its factorization.

192989497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 58.

The square root of 192989497 is about 13892.0659730653. The cubic root of 192989497 is about 577.8891732852.

The spelling of 192989497 in words is "one hundred ninety-two million, nine hundred eighty-nine thousand, four hundred ninety-seven".