65722782 has 16 divisors (see below), whose sum is σ = 139177872. Its totient is φ = 20618880.

The previous prime is 65722781. The next prime is 65722793. The reversal of 65722782 is 28722756.

It is a self number, because there is not a number n which added to its sum of digits gives 65722782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65722781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322069 + ... + 322272.

It is an arithmetic number, because the mean of its divisors is an integer number (8698617).

Almost surely, 2^65722782 is an apocalyptic number.

65722782 is an abundant number, since it is smaller than the sum of its proper divisors (73455090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65722782 is a wasteful number, since it uses less digits than its factorization.

65722782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644363.

The product of its digits is 94080, while the sum is 39.

The square root of 65722782 is about 8106.9588626069. The cubic root of 65722782 is about 403.5573976811.

The spelling of 65722782 in words is "sixty-five million, seven hundred twenty-two thousand, seven hundred eighty-two".