65816893 has 4 divisors (see below), whose sum is σ = 69280960. Its totient is φ = 62352828.

The previous prime is 65816887. The next prime is 65816899. The reversal of 65816893 is 39861856.

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 an interprime number because it is at equal distance from previous prime (65816887) and next prime (65816899).

It is a cyclic number.

It is not a de Polignac number, because 65816893 - 2⁹ = 65816381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65816899) 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, 1732005 + ... + 1732042.

It is an arithmetic number, because the mean of its divisors is an integer number (17320240).

Almost surely, 2^65816893 is an apocalyptic number.

It is an amenable number.

65816893 is a deficient number, since it is larger than the sum of its proper divisors (3464067).

65816893 is a wasteful number, since it uses less digits than its factorization.

65816893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464066.

The product of its digits is 311040, while the sum is 46.

The square root of 65816893 is about 8112.7611206050. The cubic root of 65816893 is about 403.7499289747.

The spelling of 65816893 in words is "sixty-five million, eight hundred sixteen thousand, eight hundred ninety-three".