61804065 has 16 divisors (see below), whose sum is σ = 98989056. Its totient is φ = 32928000.

The previous prime is 61804051. The next prime is 61804073. The reversal of 61804065 is 56040816.

61804065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61804065 - 2⁵ = 61804033 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20665 + ... + 23465.

It is an arithmetic number, because the mean of its divisors is an integer number (6186816).

Almost surely, 2^61804065 is an apocalyptic number.

It is an amenable number.

61804065 is a deficient number, since it is larger than the sum of its proper divisors (37184991).

61804065 is a wasteful number, since it uses less digits than its factorization.

61804065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 61804065 is about 7861.5561436652. The cubic root of 61804065 is about 395.3717911609.

The spelling of 61804065 in words is "sixty-one million, eight hundred four thousand, sixty-five".