65339999 has 4 divisors (see below), whose sum is σ = 65457864. Its totient is φ = 65222136.

The previous prime is 65339969. The next prime is 65340001. The reversal of 65339999 is 99993356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65339999 - 2¹² = 65335903 is a prime.

It is a Duffinian number.

65339999 is a modest number, since divided by 9999 gives 6533 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 65339999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65339969) 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, 58097 + ... + 59210.

It is an arithmetic number, because the mean of its divisors is an integer number (16364466).

Almost surely, 2^65339999 is an apocalyptic number.

65339999 is a deficient number, since it is larger than the sum of its proper divisors (117865).

65339999 is a wasteful number, since it uses less digits than its factorization.

65339999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117864.

The product of its digits is 1771470, while the sum is 53.

The square root of 65339999 is about 8083.3160893287. The cubic root of 65339999 is about 402.7724046204.

The spelling of 65339999 in words is "sixty-five million, three hundred thirty-nine thousand, nine hundred ninety-nine".