65894449 has 2 divisors, whose sum is σ = 65894450. Its totient is φ = 65894448.

The previous prime is 65894401. The next prime is 65894459. The reversal of 65894449 is 94449856.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47128225 + 18766224 = 6865^2 + 4332^2 .

It is a cyclic number.

It is not a de Polignac number, because 65894449 - 2⁷ = 65894321 is a prime.

It is not a weakly prime, because it can be changed into another prime (65894459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32947224 + 32947225.

It is an arithmetic number, because the mean of its divisors is an integer number (32947225).

Almost surely, 2^65894449 is an apocalyptic number.

It is an amenable number.

65894449 is a deficient number, since it is larger than the sum of its proper divisors (1).

65894449 is an equidigital number, since it uses as much as digits as its factorization.

65894449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 65894449 is about 8117.5395902946. The cubic root of 65894449 is about 403.9084543253.

The spelling of 65894449 in words is "sixty-five million, eight hundred ninety-four thousand, four hundred forty-nine".