65072732 has 12 divisors (see below), whose sum is σ = 114603720. Its totient is φ = 32328816.

The previous prime is 65072669. The next prime is 65072759. The reversal of 65072732 is 23727056.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51182 + ... + 52437.

It is an arithmetic number, because the mean of its divisors is an integer number (9550310).

Almost surely, 2^65072732 is an apocalyptic number.

It is an amenable number.

65072732 is a deficient number, since it is larger than the sum of its proper divisors (49530988).

65072732 is a wasteful number, since it uses less digits than its factorization.

65072732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103780 (or 103778 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 65072732 is about 8066.7671343606. The cubic root of 65072732 is about 402.2224868434. Note that the first 3 decimals are identical.

Adding to 65072732 its reverse (23727056), we get a palindrome (88799788).

The spelling of 65072732 in words is "sixty-five million, seventy-two thousand, seven hundred thirty-two".