10449809 has 2 divisors, whose sum is σ = 10449810. Its totient is φ = 10449808.

The previous prime is 10449787. The next prime is 10449823. The reversal of 10449809 is 90894401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9120400 + 1329409 = 3020^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 10449809 - 2⁸ = 10449553 is a prime.

It is a super-3 number, since 3×10449809³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10449869) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5224904 + 5224905.

It is an arithmetic number, because the mean of its divisors is an integer number (5224905).

Almost surely, 2^10449809 is an apocalyptic number.

It is an amenable number.

10449809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10449809 is an equidigital number, since it uses as much as digits as its factorization.

10449809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 10449809 is about 3232.6164325512. The cubic root of 10449809 is about 218.6264909314.

The spelling of 10449809 in words is "ten million, four hundred forty-nine thousand, eight hundred nine".