986749 has 2 divisors, whose sum is σ = 986750. Its totient is φ = 986748.

The previous prime is 986737. The next prime is 986759. The reversal of 986749 is 947689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648025 + 338724 = 805^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 986749 - 2⁵ = 986717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493374 + 493375.

It is an arithmetic number, because the mean of its divisors is an integer number (493375).

2⁹⁸⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

986749 is a deficient number, since it is larger than the sum of its proper divisors (1).

986749 is an equidigital number, since it uses as much as digits as its factorization.

986749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 986749 is about 993.3524047386. The cubic root of 986749 is about 99.5563345204.

Subtracting from 986749 its reverse (947689), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 986749 in words is "nine hundred eighty-six thousand, seven hundred forty-nine".