65706732 has 144 divisors (see below), whose sum is σ = 211341312. Its totient is φ = 16744320.

The previous prime is 65706703. The next prime is 65706743. The reversal of 65706732 is 23760756.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101233 + ... + 101879.

It is an arithmetic number, because the mean of its divisors is an integer number (1467648).

Almost surely, 2^65706732 is an apocalyptic number.

65706732 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65706732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105670656).

65706732 is an abundant number, since it is smaller than the sum of its proper divisors (145634580).

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

65706732 is a wasteful number, since it uses less digits than its factorization.

65706732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 65706732 is about 8105.9689118575. The cubic root of 65706732 is about 403.5245444180.

The spelling of 65706732 in words is "sixty-five million, seven hundred six thousand, seven hundred thirty-two".