65713899 has 8 divisors (see below), whose sum is σ = 87690240. Its totient is φ = 43773416.

The previous prime is 65713889. The next prime is 65713909. The reversal of 65713899 is 99831756.

It is an interprime number because it is at equal distance from previous prime (65713889) and next prime (65713909).

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 65713899 - 2⁴ = 65713883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65713889) 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, 4347 + ... + 12260.

It is an arithmetic number, because the mean of its divisors is an integer number (10961280).

Almost surely, 2^65713899 is an apocalyptic number.

65713899 is a deficient number, since it is larger than the sum of its proper divisors (21976341).

65713899 is a wasteful number, since it uses less digits than its factorization.

65713899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17929.

The product of its digits is 408240, while the sum is 48.

The square root of 65713899 is about 8106.4109814393. The cubic root of 65713899 is about 403.5392154427.

The spelling of 65713899 in words is "sixty-five million, seven hundred thirteen thousand, eight hundred ninety-nine".