65320772 has 12 divisors (see below), whose sum is σ = 124703376. Its totient is φ = 29691240.

The previous prime is 65320753. The next prime is 65320861. The reversal of 65320772 is 27702356.

It is a happy 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, 742238 + ... + 742325.

It is an arithmetic number, because the mean of its divisors is an integer number (10391948).

Almost surely, 2^65320772 is an apocalyptic number.

It is an amenable number.

65320772 is a deficient number, since it is larger than the sum of its proper divisors (59382604).

65320772 is a wasteful number, since it uses less digits than its factorization.

65320772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484578 (or 1484576 counting only the distinct ones).

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

The square root of 65320772 is about 8082.1267003184. The cubic root of 65320772 is about 402.7328940355.

The spelling of 65320772 in words is "sixty-five million, three hundred twenty thousand, seven hundred seventy-two".