65562789 has 4 divisors (see below), whose sum is σ = 87417056. Its totient is φ = 43708524.

The previous prime is 65562781. The next prime is 65562797. The reversal of 65562789 is 98726556.

It is a happy number.

65562789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (65562781) and next prime (65562797).

It is not a de Polignac number, because 65562789 - 2³ = 65562781 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 (65562781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10927129 + ... + 10927134.

It is an arithmetic number, because the mean of its divisors is an integer number (21854264).

Almost surely, 2^65562789 is an apocalyptic number.

It is an amenable number.

65562789 is a deficient number, since it is larger than the sum of its proper divisors (21854267).

65562789 is a wasteful number, since it uses less digits than its factorization.

65562789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21854266.

The product of its digits is 907200, while the sum is 48.

The square root of 65562789 is about 8097.0852162985. The cubic root of 65562789 is about 403.2296634194.

The spelling of 65562789 in words is "sixty-five million, five hundred sixty-two thousand, seven hundred eighty-nine".