65705772 has 24 divisors (see below), whose sum is σ = 167251392. Its totient is φ = 19910800.

The previous prime is 65705753. The next prime is 65705791. The reversal of 65705772 is 27750756.

It is an interprime number because it is at equal distance from previous prime (65705753) and next prime (65705791).

It is a self number, because there is not a number n which added to its sum of digits gives 65705772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248754 + ... + 249017.

It is an arithmetic number, because the mean of its divisors is an integer number (6968808).

Almost surely, 2^65705772 is an apocalyptic number.

It is an amenable number.

65705772 is an abundant number, since it is smaller than the sum of its proper divisors (101545620).

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

65705772 is a wasteful number, since it uses less digits than its factorization.

65705772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497789 (or 497787 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 65705772 is about 8105.9096960181. The cubic root of 65705772 is about 403.5225791934.

The spelling of 65705772 in words is "sixty-five million, seven hundred five thousand, seven hundred seventy-two".