65803764 has 72 divisors (see below), whose sum is σ = 175231840. Its totient is φ = 19052928.

The previous prime is 65803763. The next prime is 65803769. The reversal of 65803764 is 46730856.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65803763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441562 + ... + 441710.

Almost surely, 2^65803764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65803764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87615920).

65803764 is an abundant number, since it is smaller than the sum of its proper divisors (109428076).

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

65803764 is a wasteful number, since it uses less digits than its factorization.

65803764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 65803764 is about 8111.9519229345. The cubic root of 65803764 is about 403.7230808253.

The spelling of 65803764 in words is "sixty-five million, eight hundred three thousand, seven hundred sixty-four".