194698849 has 2 divisors, whose sum is σ = 194698850. Its totient is φ = 194698848.

The previous prime is 194698813. The next prime is 194698859. The reversal of 194698849 is 948896491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194407249 + 291600 = 13943^2 + 540^2 .

It is an emirp because it is prime and its reverse (948896491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194698849 - 2¹⁷ = 194567777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194698793 and 194698802.

It is not a weakly prime, because it can be changed into another prime (194698859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97349424 + 97349425.

It is an arithmetic number, because the mean of its divisors is an integer number (97349425).

Almost surely, 2^194698849 is an apocalyptic number.

It is an amenable number.

194698849 is a deficient number, since it is larger than the sum of its proper divisors (1).

194698849 is an equidigital number, since it uses as much as digits as its factorization.

194698849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 58.

The square root of 194698849 is about 13953.4529418349. The cubic root of 194698849 is about 579.5903260402.

The spelling of 194698849 in words is "one hundred ninety-four million, six hundred ninety-eight thousand, eight hundred forty-nine".