8736449 has 2 divisors, whose sum is σ = 8736450. Its totient is φ = 8736448.

The previous prime is 8736433. The next prime is 8736461. The reversal of 8736449 is 9446378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6927424 + 1809025 = 2632^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 8736449 - 2⁴ = 8736433 is a prime.

It is a super-2 number, since 2×8736449² = 152651082259202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8735449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4368224 + 4368225.

It is an arithmetic number, because the mean of its divisors is an integer number (4368225).

Almost surely, 2^8736449 is an apocalyptic number.

It is an amenable number.

8736449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8736449 is an equidigital number, since it uses as much as digits as its factorization.

8736449 is an evil number, because the sum of its binary digits is even.

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

The square root of 8736449 is about 2955.7484669708. The cubic root of 8736449 is about 205.9578337675.

The spelling of 8736449 in words is "eight million, seven hundred thirty-six thousand, four hundred forty-nine".