65801913 has 4 divisors (see below), whose sum is σ = 87735888. Its totient is φ = 43867940.

The previous prime is 65801903. The next prime is 65801929. The reversal of 65801913 is 31910856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65801913 - 2⁵ = 65801881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65801903) 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, 10966983 + ... + 10966988.

It is an arithmetic number, because the mean of its divisors is an integer number (21933972).

Almost surely, 2^65801913 is an apocalyptic number.

It is an amenable number.

65801913 is a deficient number, since it is larger than the sum of its proper divisors (21933975).

65801913 is a wasteful number, since it uses less digits than its factorization.

65801913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21933974.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 65801913 is about 8111.8378312193. The cubic root of 65801913 is about 403.7192953355.

The spelling of 65801913 in words is "sixty-five million, eight hundred one thousand, nine hundred thirteen".