65999343 has 8 divisors (see below), whose sum is σ = 88039728. Its totient is φ = 43979264.

The previous prime is 65999333. The next prime is 65999383. The reversal of 65999343 is 34399956.

It is a happy number.

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 65999343 - 2¹² = 65995247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65999292 and 65999301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65999333) 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, 5905 + ... + 12917.

It is an arithmetic number, because the mean of its divisors is an integer number (11004966).

Almost surely, 2^65999343 is an apocalyptic number.

65999343 is a deficient number, since it is larger than the sum of its proper divisors (22040385).

65999343 is a wasteful number, since it uses less digits than its factorization.

65999343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153.

The product of its digits is 787320, while the sum is 48.

The square root of 65999343 is about 8123.9979689805. The cubic root of 65999343 is about 404.1226611009.

The spelling of 65999343 in words is "sixty-five million, nine hundred ninety-nine thousand, three hundred forty-three".