65384985 has 32 divisors (see below), whose sum is σ = 111957120. Its totient is φ = 32486400.

The previous prime is 65384981. The next prime is 65384999. The reversal of 65384985 is 58948356.

It is a happy number.

It is not a de Polignac number, because 65384985 - 2² = 65384981 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65384981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15505 + ... + 19265.

It is an arithmetic number, because the mean of its divisors is an integer number (3498660).

Almost surely, 2^65384985 is an apocalyptic number.

It is an amenable number.

65384985 is a deficient number, since it is larger than the sum of its proper divisors (46572135).

65384985 is a wasteful number, since it uses less digits than its factorization.

65384985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849.

The product of its digits is 1036800, while the sum is 48.

The square root of 65384985 is about 8086.0982556484. The cubic root of 65384985 is about 402.8648184710.

The spelling of 65384985 in words is "sixty-five million, three hundred eighty-four thousand, nine hundred eighty-five".