8436749 has 2 divisors, whose sum is σ = 8436750. Its totient is φ = 8436748.

The previous prime is 8436739. The next prime is 8436751. The reversal of 8436749 is 9476348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 697225 = 2782^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 8436749 - 2¹² = 8432653 is a prime.

Together with 8436751, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8 + 4⁶ + 3¹³ + 6⁷ + 7⁸ + 4⁹ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8436739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4218374 + 4218375.

It is an arithmetic number, because the mean of its divisors is an integer number (4218375).

Almost surely, 2^8436749 is an apocalyptic number.

It is an amenable number.

8436749 is a deficient number, since it is larger than the sum of its proper divisors (1).

8436749 is an equidigital number, since it uses as much as digits as its factorization.

8436749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 8436749 is about 2904.6082352014. The cubic root of 8436749 is about 203.5752809835.

The spelling of 8436749 in words is "eight million, four hundred thirty-six thousand, seven hundred forty-nine".