65308388 has 12 divisors (see below), whose sum is σ = 114428160. Its totient is φ = 32614632.

The previous prime is 65308381. The next prime is 65308409. The reversal of 65308388 is 88380356.

65308388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65308381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6008 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (9535680).

Almost surely, 2^65308388 is an apocalyptic number.

It is an amenable number.

65308388 is a deficient number, since it is larger than the sum of its proper divisors (49119772).

65308388 is a wasteful number, since it uses less digits than its factorization.

65308388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19786 (or 19784 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 65308388 is about 8081.3605290199. The cubic root of 65308388 is about 402.7074413899.

The spelling of 65308388 in words is "sixty-five million, three hundred eight thousand, three hundred eighty-eight".