4640065 has 16 divisors (see below), whose sum is σ = 5978880. Its totient is φ = 3444480.

The previous prime is 4640057. The next prime is 4640081. The reversal of 4640065 is 5600464.

It is a happy number.

It is not a de Polignac number, because 4640065 - 2³ = 4640057 is a prime.

It is an Ulam number.

4640065 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6370 + ... + 7060.

It is an arithmetic number, because the mean of its divisors is an integer number (373680).

Almost surely, 2^4640065 is an apocalyptic number.

It is an amenable number.

4640065 is a deficient number, since it is larger than the sum of its proper divisors (1338815).

4640065 is a wasteful number, since it uses less digits than its factorization.

4640065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4640065 is about 2154.0810105472. The cubic root of 4640065 is about 166.7917971418.

The spelling of 4640065 in words is "four million, six hundred forty thousand, sixty-five".