65398449 has 8 divisors (see below), whose sum is σ = 88843392. Its totient is φ = 42776240.

The previous prime is 65398447. The next prime is 65398469. The reversal of 65398449 is 94489356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65398449 - 2¹ = 65398447 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65398398 and 65398407.

It is not an unprimeable number, because it can be changed into a prime (65398447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205497 + ... + 205814.

It is an arithmetic number, because the mean of its divisors is an integer number (11105424).

Almost surely, 2^65398449 is an apocalyptic number.

It is an amenable number.

65398449 is a deficient number, since it is larger than the sum of its proper divisors (23444943).

65398449 is a wasteful number, since it uses less digits than its factorization.

65398449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411367.

The product of its digits is 933120, while the sum is 48.

The square root of 65398449 is about 8086.9307527640. The cubic root of 65398449 is about 402.8924690579.

The spelling of 65398449 in words is "sixty-five million, three hundred ninety-eight thousand, four hundred forty-nine".