981850349 has 2 divisors, whose sum is σ = 981850350. Its totient is φ = 981850348.

The previous prime is 981850343. The next prime is 981850399. The reversal of 981850349 is 943058189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 850014025 + 131836324 = 29155^2 + 11482^2 .

It is an emirp because it is prime and its reverse (943058189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 981850349 - 2²⁸ = 713414893 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981850343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490925174 + 490925175.

It is an arithmetic number, because the mean of its divisors is an integer number (490925175).

Almost surely, 2^981850349 is an apocalyptic number.

It is an amenable number.

981850349 is a deficient number, since it is larger than the sum of its proper divisors (1).

981850349 is an equidigital number, since it uses as much as digits as its factorization.

981850349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 981850349 is about 31334.4913633523. The cubic root of 981850349 is about 993.9131416613.

The spelling of 981850349 in words is "nine hundred eighty-one million, eight hundred fifty thousand, three hundred forty-nine".