65889413 has 4 divisors (see below), whose sum is σ = 65919468. Its totient is φ = 65859360.

The previous prime is 65889407. The next prime is 65889427. The reversal of 65889413 is 31498856.

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

It can be written as a sum of positive squares in 2 ways, for example, as 247009 + 65642404 = 497^2 + 8102^2 .

It is a cyclic number.

It is not a de Polignac number, because 65889413 - 2¹⁴ = 65873029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65889443) 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, 11456 + ... + 16217.

It is an arithmetic number, because the mean of its divisors is an integer number (16479867).

Almost surely, 2^65889413 is an apocalyptic number.

It is an amenable number.

65889413 is a deficient number, since it is larger than the sum of its proper divisors (30055).

65889413 is a wasteful number, since it uses less digits than its factorization.

65889413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30054.

The product of its digits is 207360, while the sum is 44.

The square root of 65889413 is about 8117.2293918553. The cubic root of 65889413 is about 403.8981644611.

The spelling of 65889413 in words is "sixty-five million, eight hundred eighty-nine thousand, four hundred thirteen".