65998424 has 16 divisors (see below), whose sum is σ = 125443320. Its totient is φ = 32546880.

The previous prime is 65998423. The next prime is 65998433. The reversal of 65998424 is 42489956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65998423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55922 + ... + 57089.

Almost surely, 2^65998424 is an apocalyptic number.

It is an amenable number.

65998424 is a deficient number, since it is larger than the sum of its proper divisors (59444896).

65998424 is a wasteful number, since it uses less digits than its factorization.

65998424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113090 (or 113086 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 65998424 is about 8123.9414079620. The cubic root of 65998424 is about 404.1207853728.

The spelling of 65998424 in words is "sixty-five million, nine hundred ninety-eight thousand, four hundred twenty-four".