65899752 has 64 divisors (see below), whose sum is σ = 183643200. Its totient is φ = 19584000.

The previous prime is 65899741. The next prime is 65899753. The reversal of 65899752 is 25799856.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 65899695 and 65899704.

It is not an unprimeable number, because it can be changed into a prime (65899753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3502 + ... + 12002.

It is an arithmetic number, because the mean of its divisors is an integer number (2869425).

Almost surely, 2^65899752 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 65899752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91821600).

65899752 is an abundant number, since it is smaller than the sum of its proper divisors (117743448).

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

65899752 is a wasteful number, since it uses less digits than its factorization.

65899752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8546 (or 8542 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 65899752 is about 8117.8662221054. The cubic root of 65899752 is about 403.9192891736.

The spelling of 65899752 in words is "sixty-five million, eight hundred ninety-nine thousand, seven hundred fifty-two".